[libvirt] PATCH: 0/5: API for converting domain XML to/from native config formats
This is a long overdue update to the idea I described here http://www.redhat.com/archives/libvir-list/2009-April/msg00266.html And the initial patch posted here http://www.redhat.com/archives/libvir-list/2009-April/msg00401.html Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
This provides the 2 public APIs needed for conversion of domain XML to/from native configuration formats. It also hooks up the internal driver infrastructure, and binds to virsh docs/devhelp/libvirt-libvirt.html | 10 docs/html/libvirt-libvirt.html | 8 docs/html/libvirt-virterror.html | 522 +++++++++++++++++++++++++++++++++++++- docs/libvirt-api.xml | 22 + docs/libvirt-refs.xml | 77 +++++ include/libvirt/libvirt.h | 10 include/libvirt/libvirt.h.in | 10 src/driver.h | 12 src/libvirt.c | 105 +++++++ src/libvirt_public.syms | 12 src/lxc_driver.c | 2 src/openvz_driver.c | 2 src/qemu_driver.c | 2 src/remote_internal.c | 2 src/test.c | 2 src/uml_driver.c | 2 src/virsh.c | 94 ++++++ src/xen_unified.c | 2 18 files changed, 886 insertions(+), 10 deletions(-) Daniel diff -r 803e91762b86 docs/devhelp/libvirt-libvirt.html --- a/docs/devhelp/libvirt-libvirt.html Wed May 13 09:34:19 2009 -0400 +++ b/docs/devhelp/libvirt-libvirt.html Wed May 13 09:34:22 2009 -0400 @@ -122,6 +122,7 @@ int <a href="#virInitialize">virInitiali int <a href="#virInitialize">virInitialize</a> (void); const char * <a href="#virNodeDeviceGetName">virNodeDeviceGetName</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev); int <a href="#virStoragePoolSetAutostart">virStoragePoolSetAutostart</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br/> int autostart); +char * <a href="#virConnectDomainXMLFromNative">virConnectDomainXMLFromNative</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br/> const char * nativeFormat, <br/> const char * nativeConfig, <br/> unsigned int flags); int <a href="#virNodeDeviceDettach">virNodeDeviceDettach</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev); int <a href="#virDomainGetSecurityLabel">virDomainGetSecurityLabel</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br/> <a href="libvirt-libvirt.html#virSecurityLabelPtr">virSecurityLabelPtr</a> seclabel); int <a href="#virConnectDomainEventDeregister">virConnectDomainEventDeregister</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br/> <a href="libvirt-libvirt.html#virConnectDomainEventCallback">virConnectDomainEventCallback</a> cb); @@ -162,6 +163,7 @@ int <a href="#virNetworkGetAutostart">vi int <a href="#virNetworkGetAutostart">virNetworkGetAutostart</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br/> int * autostart); char * <a href="#virNetworkGetBridgeName">virNetworkGetBridgeName</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network); char * <a href="#virStorageVolGetXMLDesc">virStorageVolGetXMLDesc</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br/> unsigned int flags); +char * <a href="#virConnectDomainXMLToNative">virConnectDomainXMLToNative</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br/> const char * nativeFormat, <br/> const char * domainXml, <br/> unsigned int flags); int <a href="#virDomainSetSchedulerParameters">virDomainSetSchedulerParameters</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br/> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br/> int nparams); const char * <a href="#virConnectGetType">virConnectGetType</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn); <a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolCreateXML">virStorageVolCreateXML</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br/> const char * xmldesc, <br/> unsigned int flags); @@ -795,6 +797,14 @@ The content of this structure is not mad </pre><p>Adds a Domain Event Callback. Registering for a domain callback will enable delivery of the events The <a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> object handle passed into the callback upon delivery of an event is only valid for the duration of execution of the callback. If the callback wishes to keep the domain object after the callback</p> <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the connection</td></tr><tr><td><span class="term"><i><tt>cb</tt></i>:</span></td><td>callback to the function handling domain events</td></tr><tr><td><span class="term"><i><tt>opaque</tt></i>:</span></td><td>opaque data to pass on to the callback</td></tr><tr><td><span class="term"><i><tt>freecb</tt></i>:</span></td><td>optional function to deallocate opaque when not used anymore</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>it shall take a reference to it, by calling virDomainRef. The reference can be released once the object is no longer required by calling virDomainFree. Returns 0 on success, -1 on failure</td></tr></tbody></table></div></div> <hr/> + <div class="refsect2" lang="en"><h3><a name="virConnectDomainXMLFromNative"/>virConnectDomainXMLFromNative ()</h3><pre class="programlisting">char * virConnectDomainXMLFromNative (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br/> const char * nativeFormat, <br/> const char * nativeConfig, <br/> unsigned int flags)<br/> +</pre><p>Reads native configuration data describing a domain, and generates libvirt domain XML. The format of the native data is hypervisor dependant.</p> +<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>a connection object</td></tr><tr><td><span class="term"><i><tt>nativeFormat</tt></i>:</span></td><td>configuration format importing from</td></tr><tr><td><span class="term"><i><tt>nativeConfig</tt></i>:</span></td><td>the configuration data to import</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>currently unused, pass 0</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div></div> + <hr/> + <div class="refsect2" lang="en"><h3><a name="virConnectDomainXMLToNative"/>virConnectDomainXMLToNative ()</h3><pre class="programlisting">char * virConnectDomainXMLToNative (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br/> const char * nativeFormat, <br/> const char * domainXml, <br/> unsigned int flags)<br/> +</pre><p>Reads a domain XML configuration document, and generates generates a native configuration file describing the domain. The format of the native data is hypervisor dependant.</p> +<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>a connection object</td></tr><tr><td><span class="term"><i><tt>nativeFormat</tt></i>:</span></td><td>configuration format exporting to</td></tr><tr><td><span class="term"><i><tt>domainXml</tt></i>:</span></td><td>the domain configuration to export</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>currently unused, pass 0</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded native config datafile, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div></div> + <hr/> <div class="refsect2" lang="en"><h3><a name="virConnectFindStoragePoolSources"/>virConnectFindStoragePoolSources ()</h3><pre class="programlisting">char * virConnectFindStoragePoolSources (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br/> const char * type, <br/> const char * srcSpec, <br/> unsigned int flags)<br/> </pre><p>Talks to a storage backend and attempts to auto-discover the set of available storage pool sources. e.g. For iSCSI this would be a set of iSCSI targets. For NFS this would be a list of exported paths. The srcSpec (optional for some storage pool types, e.g. local ones) is an instance of the storage pool's source element specifying where to look for the pools. srcSpec is not required for some types (e.g., those querying local storage resources only)</p> <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>type of storage pool sources to discover</td></tr><tr><td><span class="term"><i><tt>srcSpec</tt></i>:</span></td><td>XML document specifying discovery source</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for discovery (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>an xml document consisting of a SourceList element containing a source document appropriate to the given pool type for each discovered source.</td></tr></tbody></table></div></div> diff -r 803e91762b86 docs/html/libvirt-libvirt.html --- a/docs/html/libvirt-libvirt.html Wed May 13 09:34:19 2009 -0400 +++ b/docs/html/libvirt-libvirt.html Wed May 13 09:41:37 2009 -0400 @@ -84,6 +84,8 @@ int <a href="#virConnectDomainEventCallb int <a href="#virConnectDomainEventDeregister">virConnectDomainEventDeregister</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virConnectDomainEventCallback">virConnectDomainEventCallback</a> cb) int <a href="#virConnectDomainEventRegister">virConnectDomainEventRegister</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virConnectDomainEventCallback">virConnectDomainEventCallback</a> cb, <br /> void * opaque, <br /> <a href="libvirt-libvirt.html#virFreeCallback">virFreeCallback</a> freecb) +char * <a href="#virConnectDomainXMLFromNative">virConnectDomainXMLFromNative</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * nativeFormat, <br /> const char * nativeConfig, <br /> unsigned int flags) +char * <a href="#virConnectDomainXMLToNative">virConnectDomainXMLToNative</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * nativeFormat, <br /> const char * domainXml, <br /> unsigned int flags) char * <a href="#virConnectFindStoragePoolSources">virConnectFindStoragePoolSources</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type, <br /> const char * srcSpec, <br /> unsigned int flags) char * <a href="#virConnectGetCapabilities">virConnectGetCapabilities</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) char * <a href="#virConnectGetHostname">virConnectGetHostname</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) @@ -362,7 +364,9 @@ int <a href="#virStorageVolRef">virStora </pre><p>This function closes the connection to the Hypervisor. This should not be called if further interaction with the Hypervisor are needed especially if there is running domain which need further monitoring by the application.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConnectDomainEventCallback" id="virConnectDomainEventCallback"><code>virConnectDomainEventCallback</code></a></h3><pre class="programlisting">typedef int (*virConnectDomainEventCallback) (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> int event, <br /> int detail, <br /> void * opaque) </pre><p>A callback function to be registered, and called when a domain event occurs</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td><a href="libvirt-libvirt.html#virConnect">virConnect</a> connection</td></tr><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>The domain on which the event occured</td></tr><tr><td><span class="term"><i><tt>event</tt></i>:</span></td><td>The specfic <a href="libvirt-libvirt.html#virDomainEventType">virDomainEventType</a> which occured</td></tr><tr><td><span class="term"><i><tt>detail</tt></i>:</span></td><td>event specific detail information</td></tr><tr><td><span class="term"><i><tt>opaque</tt></i>:</span></td><td>opaque user data</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td></td></tr></tbody></table></div><br /><h3><a name="virConnectDomainEventDeregister" id="virConnectDomainEventDeregister"><code>virConnectDomainEventDeregister</code></a></h3><pre class="programlisting">int virConnectDomainEventDeregister (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virConnectDomainEventCallback">virConnectDomainEventCallback</a> cb)<br /> </pre><p>Removes a Domain Event Callback. De-registering for a domain callback will disable delivery of this event type</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the connection</td></tr><tr><td><span class="term"><i><tt>cb</tt></i>:</span></td><td>callback to the function handling domain events</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virConnectDomainEventRegister" id="virConnectDomainEventRegister"><code>virConnectDomainEventRegister</code></a></h3><pre class="programlisting">int virConnectDomainEventRegister (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virConnectDomainEventCallback">virConnectDomainEventCallback</a> cb, <br /> void * opaque, <br /> <a href="libvirt-libvirt.html#virFreeCallback">virFreeCallback</a> freecb)<br /> -</pre><p>Adds a Domain Event Callback. Registering for a domain callback will enable delivery of the events The <a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> object handle passed into the callback upon delivery of an event is only valid for the duration of execution of the callback. If the callback wishes to keep the domain object after the callback</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the connection</td></tr><tr><td><span class="term"><i><tt>cb</tt></i>:</span></td><td>callback to the function handling domain events</td></tr><tr><td><span class="term"><i><tt>opaque</tt></i>:</span></td><td>opaque data to pass on to the callback</td></tr><tr><td><span class="term"><i><tt>freecb</tt></i>:</span></td><td>optional function to deallocate opaque when not used anymore</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>it shall take a reference to it, by calling virDomainRef. The reference can be released once the object is no longer required by calling virDomainFree. Returns 0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virConnectFindStoragePoolSources" id="virConnectFindStoragePoolSources"><code>virConnectFindStoragePoolSources</code></a></h3><pre class="programlisting">char * virConnectFindStoragePoolSources (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type, <br /> const char * srcSpec, <br /> unsigned int flags)<br /> +</pre><p>Adds a Domain Event Callback. Registering for a domain callback will enable delivery of the events The <a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> object handle passed into the callback upon delivery of an event is only valid for the duration of execution of the callback. If the callback wishes to keep the domain object after the callback</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the connection</td></tr><tr><td><span class="term"><i><tt>cb</tt></i>:</span></td><td>callback to the function handling domain events</td></tr><tr><td><span class="term"><i><tt>opaque</tt></i>:</span></td><td>opaque data to pass on to the callback</td></tr><tr><td><span class="term"><i><tt>freecb</tt></i>:</span></td><td>optional function to deallocate opaque when not used anymore</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>it shall take a reference to it, by calling virDomainRef. The reference can be released once the object is no longer required by calling virDomainFree. Returns 0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virConnectDomainXMLFromNative" id="virConnectDomainXMLFromNative"><code>virConnectDomainXMLFromNative</code></a></h3><pre class="programlisting">char * virConnectDomainXMLFromNative (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * nativeFormat, <br /> const char * nativeConfig, <br /> unsigned int flags)<br /> +</pre><p>Reads native configuration data describing a domain, and generates libvirt domain XML. The format of the native data is hypervisor dependant.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>a connection object</td></tr><tr><td><span class="term"><i><tt>nativeFormat</tt></i>:</span></td><td>configuration format importing from</td></tr><tr><td><span class="term"><i><tt>nativeConfig</tt></i>:</span></td><td>the configuration data to import</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>currently unused, pass 0</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virConnectDomainXMLToNative" id="virConnectDomainXMLToNative"><code>virConnectDomainXMLToNative</code></a></h3><pre class="programlisting">char * virConnectDomainXMLToNative (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * nativeFormat, <br /> const char * domainXml, <br /> unsigned int flags)<br /> +</pre><p>Reads a domain XML configuration document, and generates generates a native configuration file describing the domain. The format of the native data is hypervisor dependant.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>a connection object</td></tr><tr><td><span class="term"><i><tt>nativeFormat</tt></i>:</span></td><td>configuration format exporting to</td></tr><tr><td><span class="term"><i><tt>domainXml</tt></i>:</span></td><td>the domain configuration to export</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>currently unused, pass 0</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded native config datafile, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virConnectFindStoragePoolSources" id="virConnectFindStoragePoolSources"><code>virConnectFindStoragePoolSources</code></a></h3><pre class="programlisting">char * virConnectFindStoragePoolSources (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type, <br /> const char * srcSpec, <br /> unsigned int flags)<br /> </pre><p>Talks to a storage backend and attempts to auto-discover the set of available storage pool sources. e.g. For iSCSI this would be a set of iSCSI targets. For NFS this would be a list of exported paths. The srcSpec (optional for some storage pool types, e.g. local ones) is an instance of the storage pool's source element specifying where to look for the pools. srcSpec is not required for some types (e.g., those querying local storage resources only)</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>type of storage pool sources to discover</td></tr><tr><td><span class="term"><i><tt>srcSpec</tt></i>:</span></td><td>XML document specifying discovery source</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for discovery (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>an xml document consisting of a SourceList element containing a source document appropriate to the given pool type for each discovered source.</td></tr></tbody></table></div><h3><a name="virConnectGetCapabilities" id="virConnectGetCapabilities"><code>virConnectGetCapabilities</code></a></h3><pre class="programlisting">char * virConnectGetCapabilities (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> </pre><p>Provides capabilities of the hypervisor / driver.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, or an XML string defining the capabilities. The client must free the returned string after use.</td></tr></tbody></table></div><h3><a name="virConnectGetHostname" id="virConnectGetHostname"><code>virConnectGetHostname</code></a></h3><pre class="programlisting">char * virConnectGetHostname (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> </pre><p>This returns the system hostname on which the hypervisor is running (the result of the gethostname(2) system call). If we are connected to a remote system, then this returns the hostname of the remote system.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to a hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the hostname which must be freed by the caller, or NULL if there was an error.</td></tr></tbody></table></div><h3><a name="virConnectGetMaxVcpus" id="virConnectGetMaxVcpus"><code>virConnectGetMaxVcpus</code></a></h3><pre class="programlisting">int virConnectGetMaxVcpus (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type)<br /> @@ -519,5 +523,5 @@ int <a href="#virStorageVolRef">virStora </pre><p>Fetch a pointer to a storage volume based on its globally unique key</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>key</tt></i>:</span></td><td>globally unique key</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByName" id="virStorageVolLookupByName"><code>virStorageVolLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByName (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * name)<br /> </pre><p>Fetch a pointer to a storage volume based on its name within a pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name of storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByPath" id="virStorageVolLookupByPath"><code>virStorageVolLookupByPath</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByPath (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * path)<br /> </pre><p>Fetch a pointer to a storage volume based on its locally (host) unique path</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>locally unique path</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolRef" id="virStorageVolRef"><code>virStorageVolRef</code></a></h3><pre class="programlisting">int virStorageVolRef (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br /> -</pre><p>Increment the reference count on the vol. For each additional call to this method, there shall be a corresponding call to <a href="libvirt-libvirt.html#virStorageVolFree">virStorageVolFree</a> to release the reference count, once the caller no longer needs the reference to this object. This method is typically useful for applications where multiple threads are using a connection, and it is required that the connection remain open until all threads have finished using it. ie, each new thread using a vol would increment the reference count.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>the vol to hold a reference on</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div></div></div><div id="footer"><p id="sponsor"> +</pre><p>Increment the reference count on the vol. For each additional call to this method, there shall be a corresponding call to <a href="libvirt-libvirt.html#virStorageVolFree">virStorageVolFree</a> to release the reference count, once the caller no longer needs the reference to this object. This method is typically useful for applications where multiple threads are using a connection, and it is required that the connection remain open until all threads have finished using it. ie, each new thread using a vol would increment the reference count.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>the vol to hold a reference on</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h1>Reference Manual for libvirt</h1><h2>Table of Contents</h2><ul><li><a href="libvirt-libvirt.html">libvirt</a>: core interfaces for the libvirt library</li><li><a href="libvirt-virterror.html">virterror</a>: error handling interfaces for the libvirt library</li></ul></div></div><div id="footer"><p id="sponsor"> Sponsored by:<br /><a href="http://et.redhat.com/"><img src="../et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p></div></body></html> diff -r 803e91762b86 docs/html/libvirt-virterror.html --- a/docs/html/libvirt-virterror.html Wed May 13 09:34:19 2009 -0400 +++ b/docs/html/libvirt-virterror.html Wed May 13 09:41:37 2009 -0400 @@ -45,5 +45,525 @@ void <a href="#virSetErrorFunc">virSetEr </pre><p>Reset the error being pointed to</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>err</tt></i>:</span></td><td>pointer to the <a href="libvirt-virterror.html#virError">virError</a> to clean up</td></tr></tbody></table></div><h3><a name="virResetLastError" id="virResetLastError"><code>virResetLastError</code></a></h3><pre class="programlisting">void virResetLastError (void)<br /> </pre><p>Reset the last error caught at the library level. The error object is kept in thread local storage, so separate threads can safely access this concurrently, only resetting their own error object.</p><h3><a name="virSaveLastError" id="virSaveLastError"><code>virSaveLastError</code></a></h3><pre class="programlisting"><a href="libvirt-virterror.html#virErrorPtr">virErrorPtr</a> virSaveLastError (void)<br /> </pre><p>Save the last error into a new error object.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the copied error or NULL if allocation failed. It is the caller's responsibility to free the error with virFreeError().</td></tr></tbody></table></div><h3><a name="virSetErrorFunc" id="virSetErrorFunc"><code>virSetErrorFunc</code></a></h3><pre class="programlisting">void virSetErrorFunc (void * userData, <br /> <a href="libvirt-virterror.html#virErrorFunc">virErrorFunc</a> handler)<br /> -</pre><p>Set a library global error handling function, if @handler is NULL, it will reset to default printing on stderr. The error raised there are those for which no handler at the connection level could caught.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>userData</tt></i>:</span></td><td>pointer to the user data provided in the handler callback</td></tr><tr><td><span class="term"><i><tt>handler</tt></i>:</span></td><td>the function to get called in case of error or NULL</td></tr></tbody></table></div></div></div><div id="footer"><p id="sponsor"> +</pre><p>Set a library global error handling function, if @handler is NULL, it will reset to default printing on stderr. The error raised there are those for which no handler at the connection level could caught.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>userData</tt></i>:</span></td><td>pointer to the user data provided in the handler callback</td></tr><tr><td><span class="term"><i><tt>handler</tt></i>:</span></td><td>the function to get called in case of error or NULL</td></tr></tbody></table></div><h1>Module libvirt from libvirt</h1><p>Provides the interfaces of the libvirt library to handle virtualized domains </p><h2>Table of Contents</h2><h3><a href="#macros">Macros</a></h3><pre>#define <a href="#LIBVIR_VERSION_NUMBER">LIBVIR_VERSION_NUMBER</a> +#define <a href="#VIR_COPY_CPUMAP">VIR_COPY_CPUMAP</a> +#define <a href="#VIR_CPU_MAPLEN">VIR_CPU_MAPLEN</a> +#define <a href="#VIR_CPU_USABLE">VIR_CPU_USABLE</a> +#define <a href="#VIR_DOMAIN_SCHED_FIELD_LENGTH">VIR_DOMAIN_SCHED_FIELD_LENGTH</a> +#define <a href="#VIR_GET_CPUMAP">VIR_GET_CPUMAP</a> +#define <a href="#VIR_NODEINFO_MAXCPUS">VIR_NODEINFO_MAXCPUS</a> +#define <a href="#VIR_SECURITY_DOI_BUFLEN">VIR_SECURITY_DOI_BUFLEN</a> +#define <a href="#VIR_SECURITY_LABEL_BUFLEN">VIR_SECURITY_LABEL_BUFLEN</a> +#define <a href="#VIR_SECURITY_MODEL_BUFLEN">VIR_SECURITY_MODEL_BUFLEN</a> +#define <a href="#VIR_UNUSE_CPU">VIR_UNUSE_CPU</a> +#define <a href="#VIR_USE_CPU">VIR_USE_CPU</a> +#define <a href="#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> +#define <a href="#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> +</pre><h3><a href="#types">Types</a></h3><pre>typedef struct _virConnect <a href="#virConnect">virConnect</a> +typedef struct _virConnectAuth <a href="#virConnectAuth">virConnectAuth</a> +typedef <a href="libvirt-libvirt.html#virConnectAuth">virConnectAuth</a> * <a name="virConnectAuthPtr" id="virConnectAuthPtr">virConnectAuthPtr</a> +typedef struct _virConnectCredential <a href="#virConnectCredential">virConnectCredential</a> +typedef <a href="libvirt-libvirt.html#virConnectCredential">virConnectCredential</a> * <a name="virConnectCredentialPtr" id="virConnectCredentialPtr">virConnectCredentialPtr</a> +typedef enum <a href="#virConnectCredentialType">virConnectCredentialType</a> +typedef enum <a href="#virConnectFlags">virConnectFlags</a> +typedef <a href="libvirt-libvirt.html#virConnect">virConnect</a> * <a name="virConnectPtr" id="virConnectPtr">virConnectPtr</a> +typedef struct _virDomain <a href="#virDomain">virDomain</a> +typedef <a href="libvirt-libvirt.html#virDomainBlockStatsStruct">virDomainBlockStatsStruct</a> * <a name="virDomainBlockStatsPtr" id="virDomainBlockStatsPtr">virDomainBlockStatsPtr</a> +typedef struct _virDomainBlockStats <a href="#virDomainBlockStatsStruct">virDomainBlockStatsStruct</a> +typedef enum <a href="#virDomainCreateFlags">virDomainCreateFlags</a> +typedef enum <a href="#virDomainEventDefinedDetailType">virDomainEventDefinedDetailType</a> +typedef enum <a href="#virDomainEventResumedDetailType">virDomainEventResumedDetailType</a> +typedef enum <a href="#virDomainEventStartedDetailType">virDomainEventStartedDetailType</a> +typedef enum <a href="#virDomainEventStoppedDetailType">virDomainEventStoppedDetailType</a> +typedef enum <a href="#virDomainEventSuspendedDetailType">virDomainEventSuspendedDetailType</a> +typedef enum <a href="#virDomainEventType">virDomainEventType</a> +typedef enum <a href="#virDomainEventUndefinedDetailType">virDomainEventUndefinedDetailType</a> +typedef struct _virDomainInfo <a href="#virDomainInfo">virDomainInfo</a> +typedef <a href="libvirt-libvirt.html#virDomainInfo">virDomainInfo</a> * <a name="virDomainInfoPtr" id="virDomainInfoPtr">virDomainInfoPtr</a> +typedef <a href="libvirt-libvirt.html#virDomainInterfaceStatsStruct">virDomainInterfaceStatsStruct</a> * <a name="virDomainInterfaceStatsPtr" id="virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a> +typedef struct _virDomainInterfaceStats <a href="#virDomainInterfaceStatsStruct">virDomainInterfaceStatsStruct</a> +typedef enum <a href="#virDomainMemoryFlags">virDomainMemoryFlags</a> +typedef enum <a href="#virDomainMigrateFlags">virDomainMigrateFlags</a> +typedef <a href="libvirt-libvirt.html#virDomain">virDomain</a> * <a name="virDomainPtr" id="virDomainPtr">virDomainPtr</a> +typedef enum <a href="#virDomainState">virDomainState</a> +typedef enum <a href="#virDomainXMLFlags">virDomainXMLFlags</a> +typedef enum <a href="#virEventHandleType">virEventHandleType</a> +typedef struct _virNetwork <a href="#virNetwork">virNetwork</a> +typedef <a href="libvirt-libvirt.html#virNetwork">virNetwork</a> * <a name="virNetworkPtr" id="virNetworkPtr">virNetworkPtr</a> +typedef struct _virNodeDevice <a href="#virNodeDevice">virNodeDevice</a> +typedef <a href="libvirt-libvirt.html#virNodeDevice">virNodeDevice</a> * <a name="virNodeDevicePtr" id="virNodeDevicePtr">virNodeDevicePtr</a> +typedef struct _virNodeInfo <a href="#virNodeInfo">virNodeInfo</a> +typedef <a href="libvirt-libvirt.html#virNodeInfo">virNodeInfo</a> * <a name="virNodeInfoPtr" id="virNodeInfoPtr">virNodeInfoPtr</a> +typedef struct _virSchedParameter <a href="#virSchedParameter">virSchedParameter</a> +typedef <a href="libvirt-libvirt.html#virSchedParameter">virSchedParameter</a> * <a name="virSchedParameterPtr" id="virSchedParameterPtr">virSchedParameterPtr</a> +typedef enum <a href="#virSchedParameterType">virSchedParameterType</a> +typedef struct _virSecurityLabel <a href="#virSecurityLabel">virSecurityLabel</a> +typedef <a href="libvirt-libvirt.html#virSecurityLabel">virSecurityLabel</a> * <a name="virSecurityLabelPtr" id="virSecurityLabelPtr">virSecurityLabelPtr</a> +typedef struct _virSecurityModel <a href="#virSecurityModel">virSecurityModel</a> +typedef <a href="libvirt-libvirt.html#virSecurityModel">virSecurityModel</a> * <a name="virSecurityModelPtr" id="virSecurityModelPtr">virSecurityModelPtr</a> +typedef struct _virStoragePool <a href="#virStoragePool">virStoragePool</a> +typedef enum <a href="#virStoragePoolBuildFlags">virStoragePoolBuildFlags</a> +typedef enum <a href="#virStoragePoolDeleteFlags">virStoragePoolDeleteFlags</a> +typedef struct _virStoragePoolInfo <a href="#virStoragePoolInfo">virStoragePoolInfo</a> +typedef <a href="libvirt-libvirt.html#virStoragePoolInfo">virStoragePoolInfo</a> * <a name="virStoragePoolInfoPtr" id="virStoragePoolInfoPtr">virStoragePoolInfoPtr</a> +typedef <a href="libvirt-libvirt.html#virStoragePool">virStoragePool</a> * <a name="virStoragePoolPtr" id="virStoragePoolPtr">virStoragePoolPtr</a> +typedef enum <a href="#virStoragePoolState">virStoragePoolState</a> +typedef struct _virStorageVol <a href="#virStorageVol">virStorageVol</a> +typedef enum <a href="#virStorageVolDeleteFlags">virStorageVolDeleteFlags</a> +typedef struct _virStorageVolInfo <a href="#virStorageVolInfo">virStorageVolInfo</a> +typedef <a href="libvirt-libvirt.html#virStorageVolInfo">virStorageVolInfo</a> * <a name="virStorageVolInfoPtr" id="virStorageVolInfoPtr">virStorageVolInfoPtr</a> +typedef <a href="libvirt-libvirt.html#virStorageVol">virStorageVol</a> * <a name="virStorageVolPtr" id="virStorageVolPtr">virStorageVolPtr</a> +typedef enum <a href="#virStorageVolType">virStorageVolType</a> +typedef struct _virVcpuInfo <a href="#virVcpuInfo">virVcpuInfo</a> +typedef <a href="libvirt-libvirt.html#virVcpuInfo">virVcpuInfo</a> * <a name="virVcpuInfoPtr" id="virVcpuInfoPtr">virVcpuInfoPtr</a> +typedef enum <a href="#virVcpuState">virVcpuState</a> +</pre><h3><a href="#functions">Functions</a></h3><pre>typedef <a href="#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a> +int <a href="#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a> (<a href="libvirt-libvirt.html#virConnectCredentialPtr">virConnectCredentialPtr</a> cred, <br /> unsigned int ncred, <br /> void * cbdata) + +int <a href="#virConnectClose">virConnectClose</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +typedef <a href="#virConnectDomainEventCallback">virConnectDomainEventCallback</a> +int <a href="#virConnectDomainEventCallback">virConnectDomainEventCallback</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> int event, <br /> int detail, <br /> void * opaque) + +int <a href="#virConnectDomainEventDeregister">virConnectDomainEventDeregister</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virConnectDomainEventCallback">virConnectDomainEventCallback</a> cb) +int <a href="#virConnectDomainEventRegister">virConnectDomainEventRegister</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virConnectDomainEventCallback">virConnectDomainEventCallback</a> cb, <br /> void * opaque, <br /> <a href="libvirt-libvirt.html#virFreeCallback">virFreeCallback</a> freecb) +char * <a href="#virConnectDomainXMLFromNative">virConnectDomainXMLFromNative</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * nativeFormat, <br /> const char * nativeConfig, <br /> unsigned int flags) +char * <a href="#virConnectDomainXMLToNative">virConnectDomainXMLToNative</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * nativeFormat, <br /> const char * domainXml, <br /> unsigned int flags) +char * <a href="#virConnectFindStoragePoolSources">virConnectFindStoragePoolSources</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type, <br /> const char * srcSpec, <br /> unsigned int flags) +char * <a href="#virConnectGetCapabilities">virConnectGetCapabilities</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +char * <a href="#virConnectGetHostname">virConnectGetHostname</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +int <a href="#virConnectGetMaxVcpus">virConnectGetMaxVcpus</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type) +const char * <a href="#virConnectGetType">virConnectGetType</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +char * <a href="#virConnectGetURI">virConnectGetURI</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +int <a href="#virConnectGetVersion">virConnectGetVersion</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long * hvVer) +int <a href="#virConnectListDefinedDomains">virConnectListDefinedDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames) +int <a href="#virConnectListDefinedNetworks">virConnectListDefinedNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames) +int <a href="#virConnectListDefinedStoragePools">virConnectListDefinedStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames) +int <a href="#virConnectListDomains">virConnectListDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int * ids, <br /> int maxids) +int <a href="#virConnectListNetworks">virConnectListNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames) +int <a href="#virConnectListStoragePools">virConnectListStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames) +int <a href="#virConnectNumOfDefinedDomains">virConnectNumOfDefinedDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +int <a href="#virConnectNumOfDefinedNetworks">virConnectNumOfDefinedNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +int <a href="#virConnectNumOfDefinedStoragePools">virConnectNumOfDefinedStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +int <a href="#virConnectNumOfDomains">virConnectNumOfDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +int <a href="#virConnectNumOfNetworks">virConnectNumOfNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +int <a href="#virConnectNumOfStoragePools">virConnectNumOfStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpen">virConnectOpen</a> (const char * name) +<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpenAuth">virConnectOpenAuth</a> (const char * name, <br /> <a href="libvirt-libvirt.html#virConnectAuthPtr">virConnectAuthPtr</a> auth, <br /> int flags) +<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpenReadOnly">virConnectOpenReadOnly</a> (const char * name) +int <a href="#virConnectRef">virConnectRef</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +int <a href="#virDomainAttachDevice">virDomainAttachDevice</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml) +int <a href="#virDomainBlockPeek">virDomainBlockPeek</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> unsigned long long offset, <br /> size_t size, <br /> void * buffer, <br /> unsigned int flags) +int <a href="#virDomainBlockStats">virDomainBlockStats</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainBlockStatsPtr">virDomainBlockStatsPtr</a> stats, <br /> size_t size) +int <a href="#virDomainCoreDump">virDomainCoreDump</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to, <br /> int flags) +int <a href="#virDomainCreate">virDomainCreate</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainCreateLinux">virDomainCreateLinux</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags) +<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainCreateXML">virDomainCreateXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags) +<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainDefineXML">virDomainDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml) +int <a href="#virDomainDestroy">virDomainDestroy</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +int <a href="#virDomainDetachDevice">virDomainDetachDevice</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml) +int <a href="#virDomainFree">virDomainFree</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +int <a href="#virDomainGetAutostart">virDomainGetAutostart</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * autostart) +<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virDomainGetConnect">virDomainGetConnect</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom) +unsigned int <a href="#virDomainGetID">virDomainGetID</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +int <a href="#virDomainGetInfo">virDomainGetInfo</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virDomainInfoPtr">virDomainInfoPtr</a> info) +unsigned long <a href="#virDomainGetMaxMemory">virDomainGetMaxMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +int <a href="#virDomainGetMaxVcpus">virDomainGetMaxVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +const char * <a href="#virDomainGetName">virDomainGetName</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +char * <a href="#virDomainGetOSType">virDomainGetOSType</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +int <a href="#virDomainGetSchedulerParameters">virDomainGetSchedulerParameters</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int * nparams) +char * <a href="#virDomainGetSchedulerType">virDomainGetSchedulerType</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * nparams) +int <a href="#virDomainGetSecurityLabel">virDomainGetSecurityLabel</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSecurityLabelPtr">virSecurityLabelPtr</a> seclabel) +int <a href="#virDomainGetUUID">virDomainGetUUID</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned char * uuid) +int <a href="#virDomainGetUUIDString">virDomainGetUUIDString</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> char * buf) +int <a href="#virDomainGetVcpus">virDomainGetVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virVcpuInfoPtr">virVcpuInfoPtr</a> info, <br /> int maxinfo, <br /> unsigned char * cpumaps, <br /> int maplen) +char * <a href="#virDomainGetXMLDesc">virDomainGetXMLDesc</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int flags) +int <a href="#virDomainInterfaceStats">virDomainInterfaceStats</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a> stats, <br /> size_t size) +<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByID">virDomainLookupByID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int id) +<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByName">virDomainLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name) +<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByUUID">virDomainLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid) +<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByUUIDString">virDomainLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr) +int <a href="#virDomainMemoryPeek">virDomainMemoryPeek</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> unsigned long long start, <br /> size_t size, <br /> void * buffer, <br /> unsigned int flags) +<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainMigrate">virDomainMigrate</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> dconn, <br /> unsigned long flags, <br /> const char * dname, <br /> const char * uri, <br /> unsigned long bandwidth) +int <a href="#virDomainPinVcpu">virDomainPinVcpu</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int vcpu, <br /> unsigned char * cpumap, <br /> int maplen) +int <a href="#virDomainReboot">virDomainReboot</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int flags) +int <a href="#virDomainRef">virDomainRef</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +int <a href="#virDomainRestore">virDomainRestore</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * from) +int <a href="#virDomainResume">virDomainResume</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +int <a href="#virDomainSave">virDomainSave</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to) +int <a href="#virDomainSetAutostart">virDomainSetAutostart</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int autostart) +int <a href="#virDomainSetMaxMemory">virDomainSetMaxMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory) +int <a href="#virDomainSetMemory">virDomainSetMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory) +int <a href="#virDomainSetSchedulerParameters">virDomainSetSchedulerParameters</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int nparams) +int <a href="#virDomainSetVcpus">virDomainSetVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int nvcpus) +int <a href="#virDomainShutdown">virDomainShutdown</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +int <a href="#virDomainSuspend">virDomainSuspend</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +int <a href="#virDomainUndefine">virDomainUndefine</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain) +typedef <a href="#virEventAddHandleFunc">virEventAddHandleFunc</a> +int <a href="#virEventAddHandleFunc">virEventAddHandleFunc</a> (int fd, <br /> int event, <br /> <a href="libvirt-libvirt.html#virEventHandleCallback">virEventHandleCallback</a> cb, <br /> void * opaque, <br /> <a href="libvirt-libvirt.html#virFreeCallback">virFreeCallback</a> ff) + +typedef <a href="#virEventAddTimeoutFunc">virEventAddTimeoutFunc</a> +int <a href="#virEventAddTimeoutFunc">virEventAddTimeoutFunc</a> (int timeout, <br /> <a href="libvirt-libvirt.html#virEventTimeoutCallback">virEventTimeoutCallback</a> cb, <br /> void * opaque, <br /> <a href="libvirt-libvirt.html#virFreeCallback">virFreeCallback</a> ff) + +typedef <a href="#virEventHandleCallback">virEventHandleCallback</a> +void <a href="#virEventHandleCallback">virEventHandleCallback</a> (int watch, <br /> int fd, <br /> int events, <br /> void * opaque) + +void <a href="#virEventRegisterImpl">virEventRegisterImpl</a> (<a href="libvirt-libvirt.html#virEventAddHandleFunc">virEventAddHandleFunc</a> addHandle, <br /> <a href="libvirt-libvirt.html#virEventUpdateHandleFunc">virEventUpdateHandleFunc</a> updateHandle, <br /> <a href="libvirt-libvirt.html#virEventRemoveHandleFunc">virEventRemoveHandleFunc</a> removeHandle, <br /> <a href="libvirt-libvirt.html#virEventAddTimeoutFunc">virEventAddTimeoutFunc</a> addTimeout, <br /> <a href="libvirt-libvirt.html#virEventUpdateTimeoutFunc">virEventUpdateTimeoutFunc</a> updateTimeout, <br /> <a href="libvirt-libvirt.html#virEventRemoveTimeoutFunc">virEventRemoveTimeoutFunc</a> removeTimeout) +typedef <a href="#virEventRemoveHandleFunc">virEventRemoveHandleFunc</a> +int <a href="#virEventRemoveHandleFunc">virEventRemoveHandleFunc</a> (int watch) + +typedef <a href="#virEventRemoveTimeoutFunc">virEventRemoveTimeoutFunc</a> +int <a href="#virEventRemoveTimeoutFunc">virEventRemoveTimeoutFunc</a> (int timer) + +typedef <a href="#virEventTimeoutCallback">virEventTimeoutCallback</a> +void <a href="#virEventTimeoutCallback">virEventTimeoutCallback</a> (int timer, <br /> void * opaque) + +typedef <a href="#virEventUpdateHandleFunc">virEventUpdateHandleFunc</a> +void <a href="#virEventUpdateHandleFunc">virEventUpdateHandleFunc</a> (int watch, <br /> int event) + +typedef <a href="#virEventUpdateTimeoutFunc">virEventUpdateTimeoutFunc</a> +void <a href="#virEventUpdateTimeoutFunc">virEventUpdateTimeoutFunc</a> (int timer, <br /> int timeout) + +typedef <a href="#virFreeCallback">virFreeCallback</a> +void <a href="#virFreeCallback">virFreeCallback</a> (void * opaque) + +int <a href="#virGetVersion">virGetVersion</a> (unsigned long * libVer, <br /> const char * type, <br /> unsigned long * typeVer) +int <a href="#virInitialize">virInitialize</a> (void) +int <a href="#virNetworkCreate">virNetworkCreate</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network) +<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkCreateXML">virNetworkCreateXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc) +<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkDefineXML">virNetworkDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml) +int <a href="#virNetworkDestroy">virNetworkDestroy</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network) +int <a href="#virNetworkFree">virNetworkFree</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network) +int <a href="#virNetworkGetAutostart">virNetworkGetAutostart</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int * autostart) +char * <a href="#virNetworkGetBridgeName">virNetworkGetBridgeName</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network) +<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virNetworkGetConnect">virNetworkGetConnect</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> net) +const char * <a href="#virNetworkGetName">virNetworkGetName</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network) +int <a href="#virNetworkGetUUID">virNetworkGetUUID</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> unsigned char * uuid) +int <a href="#virNetworkGetUUIDString">virNetworkGetUUIDString</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> char * buf) +char * <a href="#virNetworkGetXMLDesc">virNetworkGetXMLDesc</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int flags) +<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByName">virNetworkLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name) +<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByUUID">virNetworkLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid) +<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByUUIDString">virNetworkLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr) +int <a href="#virNetworkRef">virNetworkRef</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network) +int <a href="#virNetworkSetAutostart">virNetworkSetAutostart</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int autostart) +int <a href="#virNetworkUndefine">virNetworkUndefine</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network) +<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> <a href="#virNodeDeviceCreateXML">virNodeDeviceCreateXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags) +int <a href="#virNodeDeviceDestroy">virNodeDeviceDestroy</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev) +int <a href="#virNodeDeviceDettach">virNodeDeviceDettach</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev) +int <a href="#virNodeDeviceFree">virNodeDeviceFree</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev) +const char * <a href="#virNodeDeviceGetName">virNodeDeviceGetName</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev) +const char * <a href="#virNodeDeviceGetParent">virNodeDeviceGetParent</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev) +char * <a href="#virNodeDeviceGetXMLDesc">virNodeDeviceGetXMLDesc</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev, <br /> unsigned int flags) +int <a href="#virNodeDeviceListCaps">virNodeDeviceListCaps</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev, <br /> char ** const names, <br /> int maxnames) +<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> <a href="#virNodeDeviceLookupByName">virNodeDeviceLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name) +int <a href="#virNodeDeviceNumOfCaps">virNodeDeviceNumOfCaps</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev) +int <a href="#virNodeDeviceReAttach">virNodeDeviceReAttach</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev) +int <a href="#virNodeDeviceRef">virNodeDeviceRef</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev) +int <a href="#virNodeDeviceReset">virNodeDeviceReset</a> (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev) +int <a href="#virNodeGetCellsFreeMemory">virNodeGetCellsFreeMemory</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long long * freeMems, <br /> int startCell, <br /> int maxCells) +unsigned long long <a href="#virNodeGetFreeMemory">virNodeGetFreeMemory</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn) +int <a href="#virNodeGetInfo">virNodeGetInfo</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virNodeInfoPtr">virNodeInfoPtr</a> info) +int <a href="#virNodeGetSecurityModel">virNodeGetSecurityModel</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virSecurityModelPtr">virSecurityModelPtr</a> secmodel) +int <a href="#virNodeListDevices">virNodeListDevices</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * cap, <br /> char ** const names, <br /> int maxnames, <br /> unsigned int flags) +int <a href="#virNodeNumOfDevices">virNodeNumOfDevices</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * cap, <br /> unsigned int flags) +int <a href="#virStoragePoolBuild">virStoragePoolBuild</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags) +int <a href="#virStoragePoolCreate">virStoragePoolCreate</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags) +<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolCreateXML">virStoragePoolCreateXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags) +<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolDefineXML">virStoragePoolDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml, <br /> unsigned int flags) +int <a href="#virStoragePoolDelete">virStoragePoolDelete</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags) +int <a href="#virStoragePoolDestroy">virStoragePoolDestroy</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool) +int <a href="#virStoragePoolFree">virStoragePoolFree</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool) +int <a href="#virStoragePoolGetAutostart">virStoragePoolGetAutostart</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int * autostart) +<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virStoragePoolGetConnect">virStoragePoolGetConnect</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool) +int <a href="#virStoragePoolGetInfo">virStoragePoolGetInfo</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> <a href="libvirt-libvirt.html#virStoragePoolInfoPtr">virStoragePoolInfoPtr</a> info) +const char * <a href="#virStoragePoolGetName">virStoragePoolGetName</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool) +int <a href="#virStoragePoolGetUUID">virStoragePoolGetUUID</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned char * uuid) +int <a href="#virStoragePoolGetUUIDString">virStoragePoolGetUUIDString</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char * buf) +char * <a href="#virStoragePoolGetXMLDesc">virStoragePoolGetXMLDesc</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags) +int <a href="#virStoragePoolListVolumes">virStoragePoolListVolumes</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char ** const names, <br /> int maxnames) +<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByName">virStoragePoolLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name) +<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByUUID">virStoragePoolLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid) +<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByUUIDString">virStoragePoolLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr) +<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByVolume">virStoragePoolLookupByVolume</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol) +int <a href="#virStoragePoolNumOfVolumes">virStoragePoolNumOfVolumes</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool) +int <a href="#virStoragePoolRef">virStoragePoolRef</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool) +int <a href="#virStoragePoolRefresh">virStoragePoolRefresh</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags) +int <a href="#virStoragePoolSetAutostart">virStoragePoolSetAutostart</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int autostart) +int <a href="#virStoragePoolUndefine">virStoragePoolUndefine</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool) +<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolCreateXML">virStorageVolCreateXML</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * xmldesc, <br /> unsigned int flags) +<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolCreateXMLFrom">virStorageVolCreateXMLFrom</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * xmldesc, <br /> <a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> clonevol, <br /> unsigned int flags) +int <a href="#virStorageVolDelete">virStorageVolDelete</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags) +int <a href="#virStorageVolFree">virStorageVolFree</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol) +<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virStorageVolGetConnect">virStorageVolGetConnect</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol) +int <a href="#virStorageVolGetInfo">virStorageVolGetInfo</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> <a href="libvirt-libvirt.html#virStorageVolInfoPtr">virStorageVolInfoPtr</a> info) +const char * <a href="#virStorageVolGetKey">virStorageVolGetKey</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol) +const char * <a href="#virStorageVolGetName">virStorageVolGetName</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol) +char * <a href="#virStorageVolGetPath">virStorageVolGetPath</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol) +char * <a href="#virStorageVolGetXMLDesc">virStorageVolGetXMLDesc</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags) +<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByKey">virStorageVolLookupByKey</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * key) +<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByName">virStorageVolLookupByName</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * name) +<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByPath">virStorageVolLookupByPath</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * path) +int <a href="#virStorageVolRef">virStorageVolRef</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol) +</pre><h2>Description</h2><h3><a name="macros" id="macros">Macros</a></h3><h3><a name="LIBVIR_VERSION_NUMBER" id="LIBVIR_VERSION_NUMBER"><code>LIBVIR_VERSION_NUMBER</code></a></h3><pre>#define LIBVIR_VERSION_NUMBER</pre><p>Macro providing the version of the library as version * 1,000,000 + minor * 1000 + micro</p><h3><a name="VIR_COPY_CPUMAP" id="VIR_COPY_CPUMAP"><code>VIR_COPY_CPUMAP</code></a></h3><pre>#define VIR_COPY_CPUMAP</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() and virDomainPinVcpu() APIs. <a href="libvirt-libvirt.html#VIR_COPY_CPUMAP">VIR_COPY_CPUMAP</a> macro extract the cpumap of the specified vcpu from cpumaps array and copy it into cpumap to be used later by virDomainPinVcpu() API.</p><h3><a name="VIR_CPU_MAPLEN" id="VIR_CPU_MAPLEN"><code>VIR_CPU_MAPLEN</code></a></h3><pre>#define VIR_CPU_MAPLEN</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. It returns the length (in bytes) required to store the complete CPU map between a single virtual & all physical CPUs of a domain.</p><h3><a name="VIR_CPU_USABLE" id="VIR_CPU_USABLE"><code>VIR_CPU_USABLE</code></a></h3><pre>#define VIR_CPU_USABLE</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() API. <a href="libvirt-libvirt.html#VIR_CPU_USABLE">VIR_CPU_USABLE</a> macro returns a non zero value (true) if the cpu is usable by the vcpu, and 0 otherwise.</p><h3><a name="VIR_DOMAIN_SCHED_FIELD_LENGTH" id="VIR_DOMAIN_SCHED_FIELD_LENGTH"><code>VIR_DOMAIN_SCHED_FIELD_LENGTH</code></a></h3><pre>#define VIR_DOMAIN_SCHED_FIELD_LENGTH</pre><p>Macro providing the field length of <a href="libvirt-libvirt.html#virSchedParameter">virSchedParameter</a></p><h3><a name="VIR_GET_CPUMAP" id="VIR_GET_CPUMAP"><code>VIR_GET_CPUMAP</code></a></h3><pre>#define VIR_GET_CPUMAP</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() and virDomainPinVcpu() APIs. <a href="libvirt-libvirt.html#VIR_GET_CPUMAP">VIR_GET_CPUMAP</a> macro returns a pointer to the cpumap of the specified vcpu from cpumaps array.</p><h3><a name="VIR_NODEINFO_MAXCPUS" id="VIR_NODEINFO_MAXCPUS"><code>VIR_NODEINFO_MAXCPUS</code></a></h3><pre>#define VIR_NODEINFO_MAXCPUS</pre><p>This macro is to calculate the total number of CPUs supported but not necessary active in the host.</p><h3><a name="VIR_SECURITY_DOI_BUFLEN" id="VIR_SECURITY_DOI_BUFLEN"><code>VIR_SECURITY_DOI_BUFLEN</code></a></h3><pre>#define VIR_SECURITY_DOI_BUFLEN</pre><p>Macro providing the maximum length of the <a href="libvirt-libvirt.html#virSecurityModel">virSecurityModel</a> doi string.</p><h3><a name="VIR_SECURITY_LABEL_BUFLEN" id="VIR_SECURITY_LABEL_BUFLEN"><code>VIR_SECURITY_LABEL_BUFLEN</code></a></h3><pre>#define VIR_SECURITY_LABEL_BUFLEN</pre><p>Macro providing the maximum length of the <a href="libvirt-libvirt.html#virSecurityLabel">virSecurityLabel</a> label string. Note that this value is based on that used by Labeled NFS.</p><h3><a name="VIR_SECURITY_MODEL_BUFLEN" id="VIR_SECURITY_MODEL_BUFLEN"><code>VIR_SECURITY_MODEL_BUFLEN</code></a></h3><pre>#define VIR_SECURITY_MODEL_BUFLEN</pre><p>Macro providing the maximum length of the <a href="libvirt-libvirt.html#virSecurityModel">virSecurityModel</a> model string.</p><h3><a name="VIR_UNUSE_CPU" id="VIR_UNUSE_CPU"><code>VIR_UNUSE_CPU</code></a></h3><pre>#define VIR_UNUSE_CPU</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. USE_CPU macro reset the bit (CPU not usable) of the related cpu in cpumap.</p><h3><a name="VIR_USE_CPU" id="VIR_USE_CPU"><code>VIR_USE_CPU</code></a></h3><pre>#define VIR_USE_CPU</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. USE_CPU macro set the bit (CPU usable) of the related cpu in cpumap.</p><h3><a name="VIR_UUID_BUFLEN" id="VIR_UUID_BUFLEN"><code>VIR_UUID_BUFLEN</code></a></h3><pre>#define VIR_UUID_BUFLEN</pre><p>This macro provides the length of the buffer required for virDomainGetUUID()</p><h3><a name="VIR_UUID_STRING_BUFLEN" id="VIR_UUID_STRING_BUFLEN"><code>VIR_UUID_STRING_BUFLEN</code></a></h3><pre>#define VIR_UUID_STRING_BUFLEN</pre><p>This macro provides the length of the buffer required for virDomainGetUUIDString()</p><h3><a name="types" id="types">Types</a></h3><h3><a name="virConnect" id="virConnect"><code>virConnect</code></a></h3><div class="api"><pre>struct virConnect{ +</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre> +} +</pre></div><h3><a name="virConnectAuth" id="virConnectAuth"><code>virConnectAuth</code></a></h3><div class="api"><pre>struct virConnectAuth{ +</pre><table><tr><td>int *</td><td>credtype</td><td> : List of supported <a href="libvirt-libvirt.html#virConnectCredentialType">virConnectCredentialType</a> values</td></tr><tr><td>unsigned int</td><td>ncredtype</td></tr><tr><td><a href="libvirt-libvirt.html#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a></td><td>cb</td><td> : Callback used to collect credentials</td></tr><tr><td>void *</td><td>cbdata</td></tr></table><pre> +} +</pre></div><h3><a name="virConnectCredential" id="virConnectCredential"><code>virConnectCredential</code></a></h3><div class="api"><pre>struct virConnectCredential{ +</pre><table><tr><td>int</td><td>type</td><td> : One of <a href="libvirt-libvirt.html#virConnectCredentialType">virConnectCredentialType</a> constants</td></tr><tr><td>const char *</td><td>prompt</td><td> : Prompt to show to user</td></tr><tr><td>const char *</td><td>challenge</td><td> : Additional challenge to show</td></tr><tr><td>const char *</td><td>defresult</td><td> : Optional default result</td></tr><tr><td>char *</td><td>result</td><td> : Result to be filled with user response (or defresult)</td></tr><tr><td>unsigned int</td><td>resultlen</td><td> : Length of the result</td></tr></table><pre> +} +</pre></div><h3><a name="virConnectCredentialType" id="virConnectCredentialType"><code>virConnectCredentialType</code></a></h3><div class="api"><pre>enum virConnectCredentialType { +</pre><table><tr><td><a name="VIR_CRED_USERNAME" id="VIR_CRED_USERNAME">VIR_CRED_USERNAME</a></td><td> = </td><td>1</td><td> : Identity to act as</td></tr><tr><td><a name="VIR_CRED_AUTHNAME" id="VIR_CRED_AUTHNAME">VIR_CRED_AUTHNAME</a></td><td> = </td><td>2</td><td> : Identify to authorize as</td></tr><tr><td><a name="VIR_CRED_LANGUAGE" id="VIR_CRED_LANGUAGE">VIR_CRED_LANGUAGE</a></td><td> = </td><td>3</td><td> : RFC 1766 languages, comma separated</td></tr><tr><td><a name="VIR_CRED_CNONCE" id="VIR_CRED_CNONCE">VIR_CRED_CNONCE</a></td><td> = </td><td>4</td><td> : client supplies a nonce</td></tr><tr><td><a name="VIR_CRED_PASSPHRASE" id="VIR_CRED_PASSPHRASE">VIR_CRED_PASSPHRASE</a></td><td> = </td><td>5</td><td> : Passphrase secret</td></tr><tr><td><a name="VIR_CRED_ECHOPROMPT" id="VIR_CRED_ECHOPROMPT">VIR_CRED_ECHOPROMPT</a></td><td> = </td><td>6</td><td> : Challenge response</td></tr><tr><td><a name="VIR_CRED_NOECHOPROMPT" id="VIR_CRED_NOECHOPROMPT">VIR_CRED_NOECHOPROMPT</a></td><td> = </td><td>7</td><td> : Challenge response</td></tr><tr><td><a name="VIR_CRED_REALM" id="VIR_CRED_REALM">VIR_CRED_REALM</a></td><td> = </td><td>8</td><td> : Authentication realm</td></tr><tr><td><a name="VIR_CRED_EXTERNAL" id="VIR_CRED_EXTERNAL">VIR_CRED_EXTERNAL</a></td><td> = </td><td>9</td><td> : Externally managed credential More may be added - expect the unexpected</td></tr></table><pre>} +</pre></div><h3><a name="virConnectFlags" id="virConnectFlags"><code>virConnectFlags</code></a></h3><div class="api"><pre>enum virConnectFlags { +</pre><table><tr><td><a name="VIR_CONNECT_RO" id="VIR_CONNECT_RO">VIR_CONNECT_RO</a></td><td> = </td><td>1</td><td> : A readonly connection</td></tr></table><pre>} +</pre></div><h3><a name="virDomain" id="virDomain"><code>virDomain</code></a></h3><div class="api"><pre>struct virDomain{ +</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre> +} +</pre></div><h3><a name="virDomainBlockStatsStruct" id="virDomainBlockStatsStruct"><code>virDomainBlockStatsStruct</code></a></h3><div class="api"><pre>struct virDomainBlockStatsStruct{ +</pre><table><tr><td>long long</td><td>rd_req</td><td> : number of read requests</td></tr><tr><td>long long</td><td>rd_bytes</td><td> : number of read bytes</td></tr><tr><td>long long</td><td>wr_req</td><td> : number of write requests</td></tr><tr><td>long long</td><td>wr_bytes</td><td> : number of written bytes</td></tr><tr><td>long long</td><td>errs</td><td> : In Xen this returns the mysterious 'oo_req'.</td></tr></table><pre> +} +</pre></div><h3><a name="virDomainCreateFlags" id="virDomainCreateFlags"><code>virDomainCreateFlags</code></a></h3><div class="api"><pre>enum virDomainCreateFlags { +</pre><table><tr><td><a name="VIR_DOMAIN_NONE" id="VIR_DOMAIN_NONE">VIR_DOMAIN_NONE</a></td><td> = </td><td>0</td></tr></table><pre>} +</pre></div><h3><a name="virDomainEventDefinedDetailType" id="virDomainEventDefinedDetailType"><code>virDomainEventDefinedDetailType</code></a></h3><div class="api"><pre>enum virDomainEventDefinedDetailType { +</pre><table><tr><td><a name="VIR_DOMAIN_EVENT_DEFINED_ADDED" id="VIR_DOMAIN_EVENT_DEFINED_ADDED">VIR_DOMAIN_EVENT_DEFINED_ADDED</a></td><td> = </td><td>0</td><td> : Newly created config file</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_DEFINED_UPDATED" id="VIR_DOMAIN_EVENT_DEFINED_UPDATED">VIR_DOMAIN_EVENT_DEFINED_UPDATED</a></td><td> = </td><td>1</td><td> : Changed config file</td></tr></table><pre>} +</pre></div><h3><a name="virDomainEventResumedDetailType" id="virDomainEventResumedDetailType"><code>virDomainEventResumedDetailType</code></a></h3><div class="api"><pre>enum virDomainEventResumedDetailType { +</pre><table><tr><td><a name="VIR_DOMAIN_EVENT_RESUMED_UNPAUSED" id="VIR_DOMAIN_EVENT_RESUMED_UNPAUSED">VIR_DOMAIN_EVENT_RESUMED_UNPAUSED</a></td><td> = </td><td>0</td><td> : Normal resume due to admin unpause</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_RESUMED_MIGRATED" id="VIR_DOMAIN_EVENT_RESUMED_MIGRATED">VIR_DOMAIN_EVENT_RESUMED_MIGRATED</a></td><td> = </td><td>1</td><td> : Resumed for completion of migration</td></tr></table><pre>} +</pre></div><h3><a name="virDomainEventStartedDetailType" id="virDomainEventStartedDetailType"><code>virDomainEventStartedDetailType</code></a></h3><div class="api"><pre>enum virDomainEventStartedDetailType { +</pre><table><tr><td><a name="VIR_DOMAIN_EVENT_STARTED_BOOTED" id="VIR_DOMAIN_EVENT_STARTED_BOOTED">VIR_DOMAIN_EVENT_STARTED_BOOTED</a></td><td> = </td><td>0</td><td> : Normal startup from boot</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_STARTED_MIGRATED" id="VIR_DOMAIN_EVENT_STARTED_MIGRATED">VIR_DOMAIN_EVENT_STARTED_MIGRATED</a></td><td> = </td><td>1</td><td> : Incoming migration from another host</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_STARTED_RESTORED" id="VIR_DOMAIN_EVENT_STARTED_RESTORED">VIR_DOMAIN_EVENT_STARTED_RESTORED</a></td><td> = </td><td>2</td><td> : Restored from a state file</td></tr></table><pre>} +</pre></div><h3><a name="virDomainEventStoppedDetailType" id="virDomainEventStoppedDetailType"><code>virDomainEventStoppedDetailType</code></a></h3><div class="api"><pre>enum virDomainEventStoppedDetailType { +</pre><table><tr><td><a name="VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN" id="VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN">VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN</a></td><td> = </td><td>0</td><td> : Normal shutdown</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_STOPPED_DESTROYED" id="VIR_DOMAIN_EVENT_STOPPED_DESTROYED">VIR_DOMAIN_EVENT_STOPPED_DESTROYED</a></td><td> = </td><td>1</td><td> : Forced poweroff from host</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_STOPPED_CRASHED" id="VIR_DOMAIN_EVENT_STOPPED_CRASHED">VIR_DOMAIN_EVENT_STOPPED_CRASHED</a></td><td> = </td><td>2</td><td> : Guest crashed</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_STOPPED_MIGRATED" id="VIR_DOMAIN_EVENT_STOPPED_MIGRATED">VIR_DOMAIN_EVENT_STOPPED_MIGRATED</a></td><td> = </td><td>3</td><td> : Migrated off to another host</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_STOPPED_SAVED" id="VIR_DOMAIN_EVENT_STOPPED_SAVED">VIR_DOMAIN_EVENT_STOPPED_SAVED</a></td><td> = </td><td>4</td><td> : Saved to a state file</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_STOPPED_FAILED" id="VIR_DOMAIN_EVENT_STOPPED_FAILED">VIR_DOMAIN_EVENT_STOPPED_FAILED</a></td><td> = </td><td>5</td><td> : Host emulator/mgmt failed</td></tr></table><pre>} +</pre></div><h3><a name="virDomainEventSuspendedDetailType" id="virDomainEventSuspendedDetailType"><code>virDomainEventSuspendedDetailType</code></a></h3><div class="api"><pre>enum virDomainEventSuspendedDetailType { +</pre><table><tr><td><a name="VIR_DOMAIN_EVENT_SUSPENDED_PAUSED" id="VIR_DOMAIN_EVENT_SUSPENDED_PAUSED">VIR_DOMAIN_EVENT_SUSPENDED_PAUSED</a></td><td> = </td><td>0</td><td> : Normal suspend due to admin pause</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_SUSPENDED_MIGRATED" id="VIR_DOMAIN_EVENT_SUSPENDED_MIGRATED">VIR_DOMAIN_EVENT_SUSPENDED_MIGRATED</a></td><td> = </td><td>1</td><td> : Suspended for offline migration</td></tr></table><pre>} +</pre></div><h3><a name="virDomainEventType" id="virDomainEventType"><code>virDomainEventType</code></a></h3><div class="api"><pre>enum virDomainEventType { +</pre><table><tr><td><a name="VIR_DOMAIN_EVENT_DEFINED" id="VIR_DOMAIN_EVENT_DEFINED">VIR_DOMAIN_EVENT_DEFINED</a></td><td> = </td><td>0</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_UNDEFINED" id="VIR_DOMAIN_EVENT_UNDEFINED">VIR_DOMAIN_EVENT_UNDEFINED</a></td><td> = </td><td>1</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_STARTED" id="VIR_DOMAIN_EVENT_STARTED">VIR_DOMAIN_EVENT_STARTED</a></td><td> = </td><td>2</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_SUSPENDED" id="VIR_DOMAIN_EVENT_SUSPENDED">VIR_DOMAIN_EVENT_SUSPENDED</a></td><td> = </td><td>3</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_RESUMED" id="VIR_DOMAIN_EVENT_RESUMED">VIR_DOMAIN_EVENT_RESUMED</a></td><td> = </td><td>4</td></tr><tr><td><a name="VIR_DOMAIN_EVENT_STOPPED" id="VIR_DOMAIN_EVENT_STOPPED">VIR_DOMAIN_EVENT_STOPPED</a></td><td> = </td><td>5</td></tr></table><pre>} +</pre></div><h3><a name="virDomainEventUndefinedDetailType" id="virDomainEventUndefinedDetailType"><code>virDomainEventUndefinedDetailType</code></a></h3><div class="api"><pre>enum virDomainEventUndefinedDetailType { +</pre><table><tr><td><a name="VIR_DOMAIN_EVENT_UNDEFINED_REMOVED" id="VIR_DOMAIN_EVENT_UNDEFINED_REMOVED">VIR_DOMAIN_EVENT_UNDEFINED_REMOVED</a></td><td> = </td><td>0</td><td> : Deleted the config file</td></tr></table><pre>} +</pre></div><h3><a name="virDomainInfo" id="virDomainInfo"><code>virDomainInfo</code></a></h3><div class="api"><pre>struct virDomainInfo{ +</pre><table><tr><td>unsigned char</td><td>state</td><td> : the running state, one of <a href="libvirt-libvirt.html#virDomainState">virDomainState</a></td></tr><tr><td>unsigned long</td><td>maxMem</td><td> : the maximum memory in KBytes allowed</td></tr><tr><td>unsigned long</td><td>memory</td><td> : the memory in KBytes used by the domain</td></tr><tr><td>unsigned short</td><td>nrVirtCpu</td><td> : the number of virtual CPUs for the domain</td></tr><tr><td>unsigned long long</td><td>cpuTime</td><td> : the CPU time used in nanoseconds</td></tr></table><pre> +} +</pre></div><h3><a name="virDomainInterfaceStatsStruct" id="virDomainInterfaceStatsStruct"><code>virDomainInterfaceStatsStruct</code></a></h3><div class="api"><pre>struct virDomainInterfaceStatsStruct{ +</pre><table><tr><td>long long</td><td>rx_bytes</td></tr><tr><td>long long</td><td>rx_packets</td></tr><tr><td>long long</td><td>rx_errs</td></tr><tr><td>long long</td><td>rx_drop</td></tr><tr><td>long long</td><td>tx_bytes</td></tr><tr><td>long long</td><td>tx_packets</td></tr><tr><td>long long</td><td>tx_errs</td></tr><tr><td>long long</td><td>tx_drop</td></tr></table><pre> +} +</pre></div><h3><a name="virDomainMemoryFlags" id="virDomainMemoryFlags"><code>virDomainMemoryFlags</code></a></h3><div class="api"><pre>enum virDomainMemoryFlags { +</pre><table><tr><td><a name="VIR_MEMORY_VIRTUAL" id="VIR_MEMORY_VIRTUAL">VIR_MEMORY_VIRTUAL</a></td><td> = </td><td>1</td><td> : addresses are virtual addresses</td></tr></table><pre>} +</pre></div><h3><a name="virDomainMigrateFlags" id="virDomainMigrateFlags"><code>virDomainMigrateFlags</code></a></h3><div class="api"><pre>enum virDomainMigrateFlags { +</pre><table><tr><td><a name="VIR_MIGRATE_LIVE" id="VIR_MIGRATE_LIVE">VIR_MIGRATE_LIVE</a></td><td> = </td><td>1</td><td> : live migration</td></tr></table><pre>} +</pre></div><h3><a name="virDomainState" id="virDomainState"><code>virDomainState</code></a></h3><div class="api"><pre>enum virDomainState { +</pre><table><tr><td><a name="VIR_DOMAIN_NOSTATE" id="VIR_DOMAIN_NOSTATE">VIR_DOMAIN_NOSTATE</a></td><td> = </td><td>0</td><td> : no state</td></tr><tr><td><a name="VIR_DOMAIN_RUNNING" id="VIR_DOMAIN_RUNNING">VIR_DOMAIN_RUNNING</a></td><td> = </td><td>1</td><td> : the domain is running</td></tr><tr><td><a name="VIR_DOMAIN_BLOCKED" id="VIR_DOMAIN_BLOCKED">VIR_DOMAIN_BLOCKED</a></td><td> = </td><td>2</td><td> : the domain is blocked on resource</td></tr><tr><td><a name="VIR_DOMAIN_PAUSED" id="VIR_DOMAIN_PAUSED">VIR_DOMAIN_PAUSED</a></td><td> = </td><td>3</td><td> : the domain is paused by user</td></tr><tr><td><a name="VIR_DOMAIN_SHUTDOWN" id="VIR_DOMAIN_SHUTDOWN">VIR_DOMAIN_SHUTDOWN</a></td><td> = </td><td>4</td><td> : the domain is being shut down</td></tr><tr><td><a name="VIR_DOMAIN_SHUTOFF" id="VIR_DOMAIN_SHUTOFF">VIR_DOMAIN_SHUTOFF</a></td><td> = </td><td>5</td><td> : the domain is shut off</td></tr><tr><td><a name="VIR_DOMAIN_CRASHED" id="VIR_DOMAIN_CRASHED">VIR_DOMAIN_CRASHED</a></td><td> = </td><td>6</td><td> : the domain is crashed</td></tr></table><pre>} +</pre></div><h3><a name="virDomainXMLFlags" id="virDomainXMLFlags"><code>virDomainXMLFlags</code></a></h3><div class="api"><pre>enum virDomainXMLFlags { +</pre><table><tr><td><a name="VIR_DOMAIN_XML_SECURE" id="VIR_DOMAIN_XML_SECURE">VIR_DOMAIN_XML_SECURE</a></td><td> = </td><td>1</td><td> : dump security sensitive information too</td></tr><tr><td><a name="VIR_DOMAIN_XML_INACTIVE" id="VIR_DOMAIN_XML_INACTIVE">VIR_DOMAIN_XML_INACTIVE</a></td><td> = </td><td>2</td><td> : dump inactive domain information</td></tr></table><pre>} +</pre></div><h3><a name="virEventHandleType" id="virEventHandleType"><code>virEventHandleType</code></a></h3><div class="api"><pre>enum virEventHandleType { +</pre><table><tr><td><a name="VIR_EVENT_HANDLE_READABLE" id="VIR_EVENT_HANDLE_READABLE">VIR_EVENT_HANDLE_READABLE</a></td><td> = </td><td>1</td></tr><tr><td><a name="VIR_EVENT_HANDLE_WRITABLE" id="VIR_EVENT_HANDLE_WRITABLE">VIR_EVENT_HANDLE_WRITABLE</a></td><td> = </td><td>2</td></tr><tr><td><a name="VIR_EVENT_HANDLE_ERROR" id="VIR_EVENT_HANDLE_ERROR">VIR_EVENT_HANDLE_ERROR</a></td><td> = </td><td>4</td></tr><tr><td><a name="VIR_EVENT_HANDLE_HANGUP" id="VIR_EVENT_HANDLE_HANGUP">VIR_EVENT_HANDLE_HANGUP</a></td><td> = </td><td>8</td></tr></table><pre>} +</pre></div><h3><a name="virNetwork" id="virNetwork"><code>virNetwork</code></a></h3><div class="api"><pre>struct virNetwork{ +</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre> +} +</pre></div><h3><a name="virNodeDevice" id="virNodeDevice"><code>virNodeDevice</code></a></h3><div class="api"><pre>struct virNodeDevice{ +</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre> +} +</pre></div><h3><a name="virNodeInfo" id="virNodeInfo"><code>virNodeInfo</code></a></h3><div class="api"><pre>struct virNodeInfo{ +</pre><table><tr><td>charmodel[32]</td><td>model</td><td> : string indicating the CPU model</td></tr><tr><td>unsigned long</td><td>memory</td><td> : memory size in kilobytes</td></tr><tr><td>unsigned int</td><td>cpus</td><td> : the number of active CPUs</td></tr><tr><td>unsigned int</td><td>mhz</td><td> : expected CPU frequency</td></tr><tr><td>unsigned int</td><td>nodes</td><td> : the number of NUMA cell, 1 for uniform mem access</td></tr><tr><td>unsigned int</td><td>sockets</td><td> : number of CPU socket per node</td></tr><tr><td>unsigned int</td><td>cores</td><td> : number of core per socket</td></tr><tr><td>unsigned int</td><td>threads</td><td> : number of threads per core</td></tr></table><pre> +} +</pre></div><h3><a name="virSchedParameter" id="virSchedParameter"><code>virSchedParameter</code></a></h3><div class="api"><pre>struct virSchedParameter{ +</pre><table><tr><td>charfield[VIR_DOMAIN_SCHED_FIELD_LENGTH]</td><td>field</td><td> : parameter name</td></tr><tr><td>int</td><td>type</td><td> : parameter type</td></tr></table><pre> +} +</pre></div><h3><a name="virSchedParameterType" id="virSchedParameterType"><code>virSchedParameterType</code></a></h3><div class="api"><pre>enum virSchedParameterType { +</pre><table><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_INT" id="VIR_DOMAIN_SCHED_FIELD_INT">VIR_DOMAIN_SCHED_FIELD_INT</a></td><td> = </td><td>1</td><td> : integer case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_UINT" id="VIR_DOMAIN_SCHED_FIELD_UINT">VIR_DOMAIN_SCHED_FIELD_UINT</a></td><td> = </td><td>2</td><td> : unsigned integer case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_LLONG" id="VIR_DOMAIN_SCHED_FIELD_LLONG">VIR_DOMAIN_SCHED_FIELD_LLONG</a></td><td> = </td><td>3</td><td> : long long case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_ULLONG" id="VIR_DOMAIN_SCHED_FIELD_ULLONG">VIR_DOMAIN_SCHED_FIELD_ULLONG</a></td><td> = </td><td>4</td><td> : unsigned long long case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_DOUBLE" id="VIR_DOMAIN_SCHED_FIELD_DOUBLE">VIR_DOMAIN_SCHED_FIELD_DOUBLE</a></td><td> = </td><td>5</td><td> : double case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_BOOLEAN" id="VIR_DOMAIN_SCHED_FIELD_BOOLEAN">VIR_DOMAIN_SCHED_FIELD_BOOLEAN</a></td><td> = </td><td>6</td><td> : boolean(character) case</td></tr></table><pre>} +</pre></div><h3><a name="virSecurityLabel" id="virSecurityLabel"><code>virSecurityLabel</code></a></h3><div class="api"><pre>struct virSecurityLabel{ +</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre> +} +</pre></div><h3><a name="virSecurityModel" id="virSecurityModel"><code>virSecurityModel</code></a></h3><div class="api"><pre>struct virSecurityModel{ +</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre> +} +</pre></div><h3><a name="virStoragePool" id="virStoragePool"><code>virStoragePool</code></a></h3><div class="api"><pre>struct virStoragePool{ +</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre> +} +</pre></div><h3><a name="virStoragePoolBuildFlags" id="virStoragePoolBuildFlags"><code>virStoragePoolBuildFlags</code></a></h3><div class="api"><pre>enum virStoragePoolBuildFlags { +</pre><table><tr><td><a name="VIR_STORAGE_POOL_BUILD_NEW" id="VIR_STORAGE_POOL_BUILD_NEW">VIR_STORAGE_POOL_BUILD_NEW</a></td><td> = </td><td>0</td><td> : Regular build from scratch</td></tr><tr><td><a name="VIR_STORAGE_POOL_BUILD_REPAIR" id="VIR_STORAGE_POOL_BUILD_REPAIR">VIR_STORAGE_POOL_BUILD_REPAIR</a></td><td> = </td><td>1</td><td> : Repair / reinitialize</td></tr><tr><td><a name="VIR_STORAGE_POOL_BUILD_RESIZE" id="VIR_STORAGE_POOL_BUILD_RESIZE">VIR_STORAGE_POOL_BUILD_RESIZE</a></td><td> = </td><td>2</td><td> : Extend existing pool</td></tr></table><pre>} +</pre></div><h3><a name="virStoragePoolDeleteFlags" id="virStoragePoolDeleteFlags"><code>virStoragePoolDeleteFlags</code></a></h3><div class="api"><pre>enum virStoragePoolDeleteFlags { +</pre><table><tr><td><a name="VIR_STORAGE_POOL_DELETE_NORMAL" id="VIR_STORAGE_POOL_DELETE_NORMAL">VIR_STORAGE_POOL_DELETE_NORMAL</a></td><td> = </td><td>0</td><td> : Delete metadata only (fast)</td></tr><tr><td><a name="VIR_STORAGE_POOL_DELETE_ZEROED" id="VIR_STORAGE_POOL_DELETE_ZEROED">VIR_STORAGE_POOL_DELETE_ZEROED</a></td><td> = </td><td>1</td><td> : Clear all data to zeros (slow)</td></tr></table><pre>} +</pre></div><h3><a name="virStoragePoolInfo" id="virStoragePoolInfo"><code>virStoragePoolInfo</code></a></h3><div class="api"><pre>struct virStoragePoolInfo{ +</pre><table><tr><td>int</td><td>state</td><td> : <a href="libvirt-libvirt.html#virStoragePoolState">virStoragePoolState</a> flags</td></tr><tr><td>unsigned long long</td><td>capacity</td><td> : Logical size bytes</td></tr><tr><td>unsigned long long</td><td>allocation</td><td> : Current allocation bytes</td></tr><tr><td>unsigned long long</td><td>available</td><td> : Remaining free space bytes</td></tr></table><pre> +} +</pre></div><h3><a name="virStoragePoolState" id="virStoragePoolState"><code>virStoragePoolState</code></a></h3><div class="api"><pre>enum virStoragePoolState { +</pre><table><tr><td><a name="VIR_STORAGE_POOL_INACTIVE" id="VIR_STORAGE_POOL_INACTIVE">VIR_STORAGE_POOL_INACTIVE</a></td><td> = </td><td>0</td><td> : Not running</td></tr><tr><td><a name="VIR_STORAGE_POOL_BUILDING" id="VIR_STORAGE_POOL_BUILDING">VIR_STORAGE_POOL_BUILDING</a></td><td> = </td><td>1</td><td> : Initializing pool, not available</td></tr><tr><td><a name="VIR_STORAGE_POOL_RUNNING" id="VIR_STORAGE_POOL_RUNNING">VIR_STORAGE_POOL_RUNNING</a></td><td> = </td><td>2</td><td> : Running normally</td></tr><tr><td><a name="VIR_STORAGE_POOL_DEGRADED" id="VIR_STORAGE_POOL_DEGRADED">VIR_STORAGE_POOL_DEGRADED</a></td><td> = </td><td>3</td><td> : Running degraded</td></tr></table><pre>} +</pre></div><h3><a name="virStorageVol" id="virStorageVol"><code>virStorageVol</code></a></h3><div class="api"><pre>struct virStorageVol{ +</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre> +} +</pre></div><h3><a name="virStorageVolDeleteFlags" id="virStorageVolDeleteFlags"><code>virStorageVolDeleteFlags</code></a></h3><div class="api"><pre>enum virStorageVolDeleteFlags { +</pre><table><tr><td><a name="VIR_STORAGE_VOL_DELETE_NORMAL" id="VIR_STORAGE_VOL_DELETE_NORMAL">VIR_STORAGE_VOL_DELETE_NORMAL</a></td><td> = </td><td>0</td><td> : Delete metadata only (fast)</td></tr><tr><td><a name="VIR_STORAGE_VOL_DELETE_ZEROED" id="VIR_STORAGE_VOL_DELETE_ZEROED">VIR_STORAGE_VOL_DELETE_ZEROED</a></td><td> = </td><td>1</td><td> : Clear all data to zeros (slow)</td></tr></table><pre>} +</pre></div><h3><a name="virStorageVolInfo" id="virStorageVolInfo"><code>virStorageVolInfo</code></a></h3><div class="api"><pre>struct virStorageVolInfo{ +</pre><table><tr><td>int</td><td>type</td><td> : <a href="libvirt-libvirt.html#virStorageVolType">virStorageVolType</a> flags</td></tr><tr><td>unsigned long long</td><td>capacity</td><td> : Logical size bytes</td></tr><tr><td>unsigned long long</td><td>allocation</td><td> : Current allocation bytes</td></tr></table><pre> +} +</pre></div><h3><a name="virStorageVolType" id="virStorageVolType"><code>virStorageVolType</code></a></h3><div class="api"><pre>enum virStorageVolType { +</pre><table><tr><td><a name="VIR_STORAGE_VOL_FILE" id="VIR_STORAGE_VOL_FILE">VIR_STORAGE_VOL_FILE</a></td><td> = </td><td>0</td><td> : Regular file based volumes</td></tr><tr><td><a name="VIR_STORAGE_VOL_BLOCK" id="VIR_STORAGE_VOL_BLOCK">VIR_STORAGE_VOL_BLOCK</a></td><td> = </td><td>1</td><td> : Block based volumes</td></tr></table><pre>} +</pre></div><h3><a name="virVcpuInfo" id="virVcpuInfo"><code>virVcpuInfo</code></a></h3><div class="api"><pre>struct virVcpuInfo{ +</pre><table><tr><td>unsigned int</td><td>number</td><td> : virtual CPU number</td></tr><tr><td>int</td><td>state</td><td> : value from <a href="libvirt-libvirt.html#virVcpuState">virVcpuState</a></td></tr><tr><td>unsigned long long</td><td>cpuTime</td><td> : CPU time used, in nanoseconds</td></tr><tr><td>int</td><td>cpu</td><td> : real CPU number, or -1 if offline</td></tr></table><pre> +} +</pre></div><h3><a name="virVcpuState" id="virVcpuState"><code>virVcpuState</code></a></h3><div class="api"><pre>enum virVcpuState { +</pre><table><tr><td><a name="VIR_VCPU_OFFLINE" id="VIR_VCPU_OFFLINE">VIR_VCPU_OFFLINE</a></td><td> = </td><td>0</td><td> : the virtual CPU is offline</td></tr><tr><td><a name="VIR_VCPU_RUNNING" id="VIR_VCPU_RUNNING">VIR_VCPU_RUNNING</a></td><td> = </td><td>1</td><td> : the virtual CPU is running</td></tr><tr><td><a name="VIR_VCPU_BLOCKED" id="VIR_VCPU_BLOCKED">VIR_VCPU_BLOCKED</a></td><td> = </td><td>2</td><td> : the virtual CPU is blocked on resource</td></tr></table><pre>} +</pre></div><h3><a name="functions" id="functions">Functions</a></h3><h3><a name="virConnectAuthCallbackPtr" id="virConnectAuthCallbackPtr"><code>virConnectAuthCallbackPtr</code></a></h3><pre class="programlisting">typedef int (*virConnectAuthCallbackPtr) (<a href="libvirt-libvirt.html#virConnectCredentialPtr">virConnectCredentialPtr</a> cred, <br /> unsigned int ncred, <br /> void * cbdata) +</pre><p></p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>cred</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>ncred</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>cbdata</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td></td></tr></tbody></table></div><br /><h3><a name="virConnectClose" id="virConnectClose"><code>virConnectClose</code></a></h3><pre class="programlisting">int virConnectClose (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>This function closes the connection to the Hypervisor. This should not be called if further interaction with the Hypervisor are needed especially if there is running domain which need further monitoring by the application.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConnectDomainEventCallback" id="virConnectDomainEventCallback"><code>virConnectDomainEventCallback</code></a></h3><pre class="programlisting">typedef int (*virConnectDomainEventCallback) (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> int event, <br /> int detail, <br /> void * opaque) +</pre><p>A callback function to be registered, and called when a domain event occurs</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td><a href="libvirt-libvirt.html#virConnect">virConnect</a> connection</td></tr><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>The domain on which the event occured</td></tr><tr><td><span class="term"><i><tt>event</tt></i>:</span></td><td>The specfic <a href="libvirt-libvirt.html#virDomainEventType">virDomainEventType</a> which occured</td></tr><tr><td><span class="term"><i><tt>detail</tt></i>:</span></td><td>event specific detail information</td></tr><tr><td><span class="term"><i><tt>opaque</tt></i>:</span></td><td>opaque user data</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td></td></tr></tbody></table></div><br /><h3><a name="virConnectDomainEventDeregister" id="virConnectDomainEventDeregister"><code>virConnectDomainEventDeregister</code></a></h3><pre class="programlisting">int virConnectDomainEventDeregister (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virConnectDomainEventCallback">virConnectDomainEventCallback</a> cb)<br /> +</pre><p>Removes a Domain Event Callback. De-registering for a domain callback will disable delivery of this event type</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the connection</td></tr><tr><td><span class="term"><i><tt>cb</tt></i>:</span></td><td>callback to the function handling domain events</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virConnectDomainEventRegister" id="virConnectDomainEventRegister"><code>virConnectDomainEventRegister</code></a></h3><pre class="programlisting">int virConnectDomainEventRegister (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virConnectDomainEventCallback">virConnectDomainEventCallback</a> cb, <br /> void * opaque, <br /> <a href="libvirt-libvirt.html#virFreeCallback">virFreeCallback</a> freecb)<br /> +</pre><p>Adds a Domain Event Callback. Registering for a domain callback will enable delivery of the events The <a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> object handle passed into the callback upon delivery of an event is only valid for the duration of execution of the callback. If the callback wishes to keep the domain object after the callback</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the connection</td></tr><tr><td><span class="term"><i><tt>cb</tt></i>:</span></td><td>callback to the function handling domain events</td></tr><tr><td><span class="term"><i><tt>opaque</tt></i>:</span></td><td>opaque data to pass on to the callback</td></tr><tr><td><span class="term"><i><tt>freecb</tt></i>:</span></td><td>optional function to deallocate opaque when not used anymore</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>it shall take a reference to it, by calling virDomainRef. The reference can be released once the object is no longer required by calling virDomainFree. Returns 0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virConnectDomainXMLFromNative" id="virConnectDomainXMLFromNative"><code>virConnectDomainXMLFromNative</code></a></h3><pre class="programlisting">char * virConnectDomainXMLFromNative (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * nativeFormat, <br /> const char * nativeConfig, <br /> unsigned int flags)<br /> +</pre><p>Reads native configuration data describing a domain, and generates libvirt domain XML. The format of the native data is hypervisor dependant.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>a connection object</td></tr><tr><td><span class="term"><i><tt>nativeFormat</tt></i>:</span></td><td>configuration format importing from</td></tr><tr><td><span class="term"><i><tt>nativeConfig</tt></i>:</span></td><td>the configuration data to import</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>currently unused, pass 0</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virConnectDomainXMLToNative" id="virConnectDomainXMLToNative"><code>virConnectDomainXMLToNative</code></a></h3><pre class="programlisting">char * virConnectDomainXMLToNative (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * nativeFormat, <br /> const char * domainXml, <br /> unsigned int flags)<br /> +</pre><p>Reads a domain XML configuration document, and generates generates a native configuration file describing the domain. The format of the native data is hypervisor dependant.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>a connection object</td></tr><tr><td><span class="term"><i><tt>nativeFormat</tt></i>:</span></td><td>configuration format exporting to</td></tr><tr><td><span class="term"><i><tt>domainXml</tt></i>:</span></td><td>the domain configuration to export</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>currently unused, pass 0</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded native config datafile, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virConnectFindStoragePoolSources" id="virConnectFindStoragePoolSources"><code>virConnectFindStoragePoolSources</code></a></h3><pre class="programlisting">char * virConnectFindStoragePoolSources (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type, <br /> const char * srcSpec, <br /> unsigned int flags)<br /> +</pre><p>Talks to a storage backend and attempts to auto-discover the set of available storage pool sources. e.g. For iSCSI this would be a set of iSCSI targets. For NFS this would be a list of exported paths. The srcSpec (optional for some storage pool types, e.g. local ones) is an instance of the storage pool's source element specifying where to look for the pools. srcSpec is not required for some types (e.g., those querying local storage resources only)</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>type of storage pool sources to discover</td></tr><tr><td><span class="term"><i><tt>srcSpec</tt></i>:</span></td><td>XML document specifying discovery source</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for discovery (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>an xml document consisting of a SourceList element containing a source document appropriate to the given pool type for each discovered source.</td></tr></tbody></table></div><h3><a name="virConnectGetCapabilities" id="virConnectGetCapabilities"><code>virConnectGetCapabilities</code></a></h3><pre class="programlisting">char * virConnectGetCapabilities (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>Provides capabilities of the hypervisor / driver.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, or an XML string defining the capabilities. The client must free the returned string after use.</td></tr></tbody></table></div><h3><a name="virConnectGetHostname" id="virConnectGetHostname"><code>virConnectGetHostname</code></a></h3><pre class="programlisting">char * virConnectGetHostname (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>This returns the system hostname on which the hypervisor is running (the result of the gethostname(2) system call). If we are connected to a remote system, then this returns the hostname of the remote system.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to a hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the hostname which must be freed by the caller, or NULL if there was an error.</td></tr></tbody></table></div><h3><a name="virConnectGetMaxVcpus" id="virConnectGetMaxVcpus"><code>virConnectGetMaxVcpus</code></a></h3><pre class="programlisting">int virConnectGetMaxVcpus (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type)<br /> +</pre><p>Provides the maximum number of virtual CPUs supported for a guest VM of a specific type. The 'type' parameter here corresponds to the 'type' attribute in the <domain> element of the XML.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>value of the 'type' attribute in the <domain> element</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the maximum of virtual CPU or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConnectGetType" id="virConnectGetType"><code>virConnectGetType</code></a></h3><pre class="programlisting">const char * virConnectGetType (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>Get the name of the Hypervisor software used.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a static zero terminated string otherwise. See also: http://www.redhat.com/archives/libvir-list/2007-February/msg00096.html</td></tr></tbody></table></div><h3><a name="virConnectGetURI" id="virConnectGetURI"><code>virConnectGetURI</code></a></h3><pre class="programlisting">char * virConnectGetURI (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>This returns the URI (name) of the hypervisor connection. Normally this is the same as or similar to the string passed to the virConnectOpen/virConnectOpenReadOnly call, but the driver may make the URI canonical. If name == NULL was passed to virConnectOpen, then the driver will return a non-NULL URI which can be used to connect to the same hypervisor later.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to a hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the URI string which must be freed by the caller, or NULL if there was an error.</td></tr></tbody></table></div><h3><a name="virConnectGetVersion" id="virConnectGetVersion"><code>virConnectGetVersion</code></a></h3><pre class="programlisting">int virConnectGetVersion (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long * hvVer)<br /> +</pre><p>Get the version level of the Hypervisor running. This may work only with hypervisor call, i.e. with privileged access to the hypervisor, not with a Read-Only connection.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>hvVer</tt></i>:</span></td><td>return value for the version of the running hypervisor (OUT)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 otherwise. if the version can't be extracted by lack of capacities returns 0 and @hvVer is 0, otherwise @hvVer value is major * 1,000,000 + minor * 1,000 + release</td></tr></tbody></table></div><h3><a name="virConnectListDefinedDomains" id="virConnectListDefinedDomains"><code>virConnectListDefinedDomains</code></a></h3><pre class="programlisting">int virConnectListDefinedDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br /> +</pre><p>list the defined but inactive domains, stores the pointers to the names in @names</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>pointer to an array to store the names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names provided in the array or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListDefinedNetworks" id="virConnectListDefinedNetworks"><code>virConnectListDefinedNetworks</code></a></h3><pre class="programlisting">int virConnectListDefinedNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br /> +</pre><p>list the inactive networks, stores the pointers to the names in @names</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>pointer to an array to store the names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names provided in the array or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListDefinedStoragePools" id="virConnectListDefinedStoragePools"><code>virConnectListDefinedStoragePools</code></a></h3><pre class="programlisting">int virConnectListDefinedStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br /> +</pre><p>Provides the list of names of inactive storage pools upto maxnames. If there are more than maxnames, the remaining names will be silently ignored.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array of char * to fill with pool names (allocated by caller)</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on error</td></tr></tbody></table></div><h3><a name="virConnectListDomains" id="virConnectListDomains"><code>virConnectListDomains</code></a></h3><pre class="programlisting">int virConnectListDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int * ids, <br /> int maxids)<br /> +</pre><p>Collect the list of active domains, and store their ID in @maxids</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>ids</tt></i>:</span></td><td>array to collect the list of IDs of active domains</td></tr><tr><td><span class="term"><i><tt>maxids</tt></i>:</span></td><td>size of @ids</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListNetworks" id="virConnectListNetworks"><code>virConnectListNetworks</code></a></h3><pre class="programlisting">int virConnectListNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br /> +</pre><p>Collect the list of active networks, and store their names in @names</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array to collect the list of names of active networks</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of @names</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of networks found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListStoragePools" id="virConnectListStoragePools"><code>virConnectListStoragePools</code></a></h3><pre class="programlisting">int virConnectListStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br /> +</pre><p>Provides the list of names of active storage pools upto maxnames. If there are more than maxnames, the remaining names will be silently ignored.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array of char * to fill with pool names (allocated by caller)</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedDomains" id="virConnectNumOfDefinedDomains"><code>virConnectNumOfDefinedDomains</code></a></h3><pre class="programlisting">int virConnectNumOfDefinedDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>Provides the number of defined but inactive domains.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedNetworks" id="virConnectNumOfDefinedNetworks"><code>virConnectNumOfDefinedNetworks</code></a></h3><pre class="programlisting">int virConnectNumOfDefinedNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>Provides the number of inactive networks.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of networks found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedStoragePools" id="virConnectNumOfDefinedStoragePools"><code>virConnectNumOfDefinedStoragePools</code></a></h3><pre class="programlisting">int virConnectNumOfDefinedStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>Provides the number of inactive storage pools</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of pools found, or -1 on error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDomains" id="virConnectNumOfDomains"><code>virConnectNumOfDomains</code></a></h3><pre class="programlisting">int virConnectNumOfDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>Provides the number of active domains.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfNetworks" id="virConnectNumOfNetworks"><code>virConnectNumOfNetworks</code></a></h3><pre class="programlisting">int virConnectNumOfNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>Provides the number of active networks.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of network found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfStoragePools" id="virConnectNumOfStoragePools"><code>virConnectNumOfStoragePools</code></a></h3><pre class="programlisting">int virConnectNumOfStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>Provides the number of active storage pools</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of pools found, or -1 on error</td></tr></tbody></table></div><h3><a name="virConnectOpen" id="virConnectOpen"><code>virConnectOpen</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpen (const char * name)<br /> +</pre><p>This function should be called first to get a connection to the Hypervisor and xen store</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virConnectOpenAuth" id="virConnectOpenAuth"><code>virConnectOpenAuth</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpenAuth (const char * name, <br /> <a href="libvirt-libvirt.html#virConnectAuthPtr">virConnectAuthPtr</a> auth, <br /> int flags)<br /> +</pre><p>This function should be called first to get a connection to the Hypervisor. If necessary, authentication will be performed fetching credentials via the callback</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>auth</tt></i>:</span></td><td>Authenticate callback parameters</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>Open flags</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virConnectOpenReadOnly" id="virConnectOpenReadOnly"><code>virConnectOpenReadOnly</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpenReadOnly (const char * name)<br /> +</pre><p>This function should be called first to get a restricted connection to the library functionalities. The set of APIs usable are then restricted on the available methods to control the domains.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virConnectRef" id="virConnectRef"><code>virConnectRef</code></a></h3><pre class="programlisting">int virConnectRef (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>Increment the reference count on the connection. For each additional call to this method, there shall be a corresponding call to <a href="libvirt-libvirt.html#virConnectClose">virConnectClose</a> to release the reference count, once the caller no longer needs the reference to this object. This method is typically useful for applications where multiple threads are using a connection, and it is required that the connection remain open until all threads have finished using it. ie, each new thread using a connection would increment the reference count.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>the connection to hold a reference on</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure</td></tr></tbody></table></div><h3><a name="virDomainAttachDevice" id="virDomainAttachDevice"><code>virDomainAttachDevice</code></a></h3><pre class="programlisting">int virDomainAttachDevice (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)<br /> +</pre><p>Create a virtual device attachment to backend.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>pointer to XML description of one device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainBlockPeek" id="virDomainBlockPeek"><code>virDomainBlockPeek</code></a></h3><pre class="programlisting">int virDomainBlockPeek (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> unsigned long long offset, <br /> size_t size, <br /> void * buffer, <br /> unsigned int flags)<br /> +</pre><p>This function allows you to read the contents of a domain's disk device. Typical uses for this are to determine if the domain has written a Master Boot Record (indicating that the domain has completed installation), or to try to work out the state of the domain's filesystems. (Note that in the local case you might try to open the block device or file directly, but that won't work in the remote case, nor if you don't have sufficient permission. Hence the need for this call). 'path' must be a device or file corresponding to the domain. In other words it must be the precise string returned in a <disk><source dev='...'/></disk> from virDomainGetXMLDesc. 'offset' and 'size' represent an area which must lie entirely within the device or file. 'size' may be 0 to test if the call would succeed. 'buffer' is the return buffer and must be at least 'size' bytes. NB. The remote driver imposes a 64K byte limit on 'size'. For your program to be able to work reliably over a remote connection you should split large requests to <= 65536 bytes.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to the domain object</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>path to the block device</td></tr><tr><td><span class="term"><i><tt>offset</tt></i>:</span></td><td>offset within block device</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>size to read</td></tr><tr><td><span class="term"><i><tt>buffer</tt></i>:</span></td><td>return buffer (must be at least size bytes)</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>unused, always pass 0</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of failure. really 64 bits</td></tr></tbody></table></div><h3><a name="virDomainBlockStats" id="virDomainBlockStats"><code>virDomainBlockStats</code></a></h3><pre class="programlisting">int virDomainBlockStats (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainBlockStatsPtr">virDomainBlockStatsPtr</a> stats, <br /> size_t size)<br /> +</pre><p>This function returns block device (disk) stats for block devices attached to the domain. The path parameter is the name of the block device. Get this by calling <a href="libvirt-libvirt.html#virDomainGetXMLDesc">virDomainGetXMLDesc</a> and finding the <target dev='...'> attribute within //domain/devices/disk. (For example, "xvda"). Domains may have more than one block device. To get stats for each you should make multiple calls to this function. Individual fields within the stats structure may be returned as -1, which indicates that the hypervisor does not support that particular statistic.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to the domain object</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>path to the block device</td></tr><tr><td><span class="term"><i><tt>stats</tt></i>:</span></td><td>block device stats (returned)</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>size of stats structure</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainCoreDump" id="virDomainCoreDump"><code>virDomainCoreDump</code></a></h3><pre class="programlisting">int virDomainCoreDump (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to, <br /> int flags)<br /> +</pre><p>This method will dump the core of a domain on a given file for analysis. Note that for remote Xen Daemon the file path will be interpreted in the remote host.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>to</tt></i>:</span></td><td>path for the core file</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>extra flags, currently unused</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainCreate" id="virDomainCreate"><code>virDomainCreate</code></a></h3><pre class="programlisting">int virDomainCreate (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>launch a defined domain. If the call succeed the domain moves from the defined to the running domains pools.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to a defined domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virDomainCreateLinux" id="virDomainCreateLinux"><code>virDomainCreateLinux</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainCreateLinux (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)<br /> +</pre><p>Deprecated after 0.4.6. Renamed to virDomainCreateXML() providing identical functionality. This existing name will left indefinitely for API compatability.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>string containing an XML description of the domain</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>callers should always pass 0</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure</td></tr></tbody></table></div><h3><a name="virDomainCreateXML" id="virDomainCreateXML"><code>virDomainCreateXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainCreateXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)<br /> +</pre><p>Launch a new guest domain, based on an XML description similar to the one returned by virDomainGetXMLDesc() This function may requires privileged access to the hypervisor. The domain is not persistent, so its definition will disappear when it is destroyed, or if the host is restarted (see virDomainDefineXML() to define persistent domains).</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>string containing an XML description of the domain</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>callers should always pass 0</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure</td></tr></tbody></table></div><h3><a name="virDomainDefineXML" id="virDomainDefineXML"><code>virDomainDefineXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)<br /> +</pre><p>Define a domain, but does not start it. This definition is persistent, until explicitly undefined with virDomainUndefine(). A previous definition for this domain would be overriden if it already exists.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>the XML description for the domain, preferably in UTF-8</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a pointer to the domain otherwise</td></tr></tbody></table></div><h3><a name="virDomainDestroy" id="virDomainDestroy"><code>virDomainDestroy</code></a></h3><pre class="programlisting">int virDomainDestroy (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>Destroy the domain object. The running instance is shutdown if not down already and all resources used by it are given back to the hypervisor. This does not free the associated <a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> object. This function may require privileged access</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainDetachDevice" id="virDomainDetachDevice"><code>virDomainDetachDevice</code></a></h3><pre class="programlisting">int virDomainDetachDevice (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)<br /> +</pre><p>Destroy a virtual device attachment to backend.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>pointer to XML description of one device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainFree" id="virDomainFree"><code>virDomainFree</code></a></h3><pre class="programlisting">int virDomainFree (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>Free the domain object. The running instance is kept alive. The data structure is freed and should not be used thereafter.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetAutostart" id="virDomainGetAutostart"><code>virDomainGetAutostart</code></a></h3><pre class="programlisting">int virDomainGetAutostart (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * autostart)<br /> +</pre><p>Provides a boolean value indicating whether the domain configured to be automatically started when the host machine boots.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>the value returned</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetConnect" id="virDomainGetConnect"><code>virDomainGetConnect</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virDomainGetConnect (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom)<br /> +</pre><p>Provides the connection pointer associated with a domain. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the domain object together.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to a domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetID" id="virDomainGetID"><code>virDomainGetID</code></a></h3><pre class="programlisting">unsigned int virDomainGetID (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>Get the hypervisor ID number for the domain</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the domain ID number or (unsigned int) -1 in case of error</td></tr></tbody></table></div><h3><a name="virDomainGetInfo" id="virDomainGetInfo"><code>virDomainGetInfo</code></a></h3><pre class="programlisting">int virDomainGetInfo (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virDomainInfoPtr">virDomainInfoPtr</a> info)<br /> +</pre><p>Extract information about a domain. Note that if the connection used to get the domain is limited only a partial set of the information can be extracted.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#virDomainInfo">virDomainInfo</a> structure allocated by the user</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetMaxMemory" id="virDomainGetMaxMemory"><code>virDomainGetMaxMemory</code></a></h3><pre class="programlisting">unsigned long virDomainGetMaxMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>Retrieve the maximum amount of physical memory allocated to a domain. If domain is NULL, then this get the amount of memory reserved to Domain0 i.e. the domain where the application runs.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the memory size in kilobytes or 0 in case of error.</td></tr></tbody></table></div><h3><a name="virDomainGetMaxVcpus" id="virDomainGetMaxVcpus"><code>virDomainGetMaxVcpus</code></a></h3><pre class="programlisting">int virDomainGetMaxVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>Provides the maximum number of virtual CPUs supported for the guest VM. If the guest is inactive, this is basically the same as virConnectGetMaxVcpus. If the guest is running this will reflect the maximum number of virtual CPUs the guest was booted with.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the maximum of virtual CPU or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virDomainGetName" id="virDomainGetName"><code>virDomainGetName</code></a></h3><pre class="programlisting">const char * virDomainGetName (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>Get the public name for that domain</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the name or NULL, the string need not be deallocated its lifetime will be the same as the domain object.</td></tr></tbody></table></div><h3><a name="virDomainGetOSType" id="virDomainGetOSType"><code>virDomainGetOSType</code></a></h3><pre class="programlisting">char * virDomainGetOSType (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>Get the type of domain operation system.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new string or NULL in case of error, the string must be freed by the caller.</td></tr></tbody></table></div><h3><a name="virDomainGetSchedulerParameters" id="virDomainGetSchedulerParameters"><code>virDomainGetSchedulerParameters</code></a></h3><pre class="programlisting">int virDomainGetSchedulerParameters (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int * nparams)<br /> +</pre><p>Get the scheduler parameters, the @params array will be filled with the values.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>params</tt></i>:</span></td><td>pointer to scheduler parameter object (return value)</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>pointer to number of scheduler parameter (this value should be same than the returned value nparams of virDomainGetSchedulerType)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success.</td></tr></tbody></table></div><h3><a name="virDomainGetSchedulerType" id="virDomainGetSchedulerType"><code>virDomainGetSchedulerType</code></a></h3><pre class="programlisting">char * virDomainGetSchedulerType (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * nparams)<br /> +</pre><p>Get the scheduler type.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>number of scheduler parameters(return value)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error. The caller must free the returned string.</td></tr></tbody></table></div><h3><a name="virDomainGetSecurityLabel" id="virDomainGetSecurityLabel"><code>virDomainGetSecurityLabel</code></a></h3><pre class="programlisting">int virDomainGetSecurityLabel (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSecurityLabelPtr">virSecurityLabelPtr</a> seclabel)<br /> +</pre><p>Extract security label of an active domain.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>seclabel</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#virSecurityLabel">virSecurityLabel</a> structure</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure, and -2 if the operation is not supported (caller decides if that's an error).</td></tr></tbody></table></div><h3><a name="virDomainGetUUID" id="virDomainGetUUID"><code>virDomainGetUUID</code></a></h3><pre class="programlisting">int virDomainGetUUID (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned char * uuid)<br /> +</pre><p>Get the UUID for a domain</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetUUIDString" id="virDomainGetUUIDString"><code>virDomainGetUUIDString</code></a></h3><pre class="programlisting">int virDomainGetUUIDString (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> char * buf)<br /> +</pre><p>Get the UUID for a domain as string. For more information about UUID see RFC4122.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetVcpus" id="virDomainGetVcpus"><code>virDomainGetVcpus</code></a></h3><pre class="programlisting">int virDomainGetVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virVcpuInfoPtr">virVcpuInfoPtr</a> info, <br /> int maxinfo, <br /> unsigned char * cpumaps, <br /> int maplen)<br /> +</pre><p>Extract information about virtual CPUs of domain, store it in info array and also in cpumaps if this pointer isn't NULL.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to an array of <a href="libvirt-libvirt.html#virVcpuInfo">virVcpuInfo</a> structures (OUT)</td></tr><tr><td><span class="term"><i><tt>maxinfo</tt></i>:</span></td><td>number of structures in info array</td></tr><tr><td><span class="term"><i><tt>cpumaps</tt></i>:</span></td><td>pointer to an bit map of real CPUs for all vcpus of this domain (in 8-bit bytes) (OUT) If cpumaps is NULL, then no cpumap information is returned by the API. It's assumed there is <maxinfo> cpumap in cpumaps array. The memory allocated to cpumaps must be (maxinfo * maplen) bytes (ie: calloc(maxinfo, maplen)). One cpumap inside cpumaps has the format described in virDomainPinVcpu() API.</td></tr><tr><td><span class="term"><i><tt>maplen</tt></i>:</span></td><td>number of bytes in one cpumap, from 1 up to size of CPU map in underlying virtualization system (Xen...).</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of info filled in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetXMLDesc" id="virDomainGetXMLDesc"><code>virDomainGetXMLDesc</code></a></h3><pre class="programlisting">char * virDomainGetXMLDesc (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int flags)<br /> +</pre><p>Provide an XML description of the domain. The description may be reused later to relaunch the domain with virDomainCreateXML().</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>an OR'ed set of <a href="libvirt-libvirt.html#virDomainXMLFlags">virDomainXMLFlags</a></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virDomainInterfaceStats" id="virDomainInterfaceStats"><code>virDomainInterfaceStats</code></a></h3><pre class="programlisting">int virDomainInterfaceStats (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a> stats, <br /> size_t size)<br /> +</pre><p>This function returns network interface stats for interfaces attached to the domain. The path parameter is the name of the network interface. Domains may have more than network interface. To get stats for each you should make multiple calls to this function. Individual fields within the stats structure may be returned as -1, which indicates that the hypervisor does not support that particular statistic.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to the domain object</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>path to the interface</td></tr><tr><td><span class="term"><i><tt>stats</tt></i>:</span></td><td>network interface stats (returned)</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>size of stats structure</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainLookupByID" id="virDomainLookupByID"><code>virDomainLookupByID</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int id)<br /> +</pre><p>Try to find a domain based on the hypervisor ID number Note that this won't work for inactive domains which have an ID of -1, in that case a lookup based on the Name or UUId need to be done instead.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>id</tt></i>:</span></td><td>the domain ID number</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByName" id="virDomainLookupByName"><code>virDomainLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br /> +</pre><p>Try to lookup a domain on the given hypervisor based on its name.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByUUID" id="virDomainLookupByUUID"><code>virDomainLookupByUUID</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br /> +</pre><p>Try to lookup a domain on the given hypervisor based on its UUID.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>the raw UUID for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByUUIDString" id="virDomainLookupByUUIDString"><code>virDomainLookupByUUIDString</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br /> +</pre><p>Try to lookup a domain on the given hypervisor based on its UUID.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>the string UUID for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainMemoryPeek" id="virDomainMemoryPeek"><code>virDomainMemoryPeek</code></a></h3><pre class="programlisting">int virDomainMemoryPeek (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> unsigned long long start, <br /> size_t size, <br /> void * buffer, <br /> unsigned int flags)<br /> +</pre><p>This function allows you to read the contents of a domain's memory. The memory which is read is controlled by the 'start', 'size' and 'flags' parameters. If 'flags' is <a href="libvirt-libvirt.html#VIR_MEMORY_VIRTUAL">VIR_MEMORY_VIRTUAL</a> then the 'start' and 'size' parameters are interpreted as virtual memory addresses for whichever task happens to be running on the domain at the moment. Although this sounds haphazard it is in fact what you want in order to read Linux kernel state, because it ensures that pointers in the kernel image can be interpreted coherently. 'buffer' is the return buffer and must be at least 'size' bytes. 'size' may be 0 to test if the call would succeed. NB. The remote driver imposes a 64K byte limit on 'size'. For your program to be able to work reliably over a remote connection you should split large requests to <= 65536 bytes.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to the domain object</td></tr><tr><td><span class="term"><i><tt>start</tt></i>:</span></td><td>start of memory to peek</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>size of memory to peek</td></tr><tr><td><span class="term"><i><tt>buffer</tt></i>:</span></td><td>return buffer (must be at least size bytes)</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags, see below</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of failure. really 64 bits</td></tr></tbody></table></div><h3><a name="virDomainMigrate" id="virDomainMigrate"><code>virDomainMigrate</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainMigrate (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> dconn, <br /> unsigned long flags, <br /> const char * dname, <br /> const char * uri, <br /> unsigned long bandwidth)<br /> +</pre><p>Migrate the domain object from its current host to the destination host given by dconn (a connection to the destination host). Flags may be one of more of the following: <a href="libvirt-libvirt.html#VIR_MIGRATE_LIVE">VIR_MIGRATE_LIVE</a> Attempt a live migration. If a hypervisor supports renaming domains during migration, then you may set the dname parameter to the new name (otherwise it keeps the same name). If this is not supported by the hypervisor, dname must be NULL or else you will get an error. Since typically the two hypervisors connect directly to each other in order to perform the migration, you may need to specify a path from the source to the destination. This is the purpose of the uri parameter. If uri is NULL, then libvirt will try to find the best method. Uri may specify the hostname or IP address of the destination host as seen from the source. Or uri may be a URI giving transport, hostname, user, port, etc. in the usual form. Refer to driver documentation for the particular URIs supported. The maximum bandwidth (in Mbps) that will be used to do migration can be specified with the bandwidth parameter. If set to 0, libvirt will choose a suitable default. Some hypervisors do not support this feature and will return an error if bandwidth is not 0. To see which features are supported by the current hypervisor, see virConnectGetCapabilities, /capabilities/host/migration_features. There are many limitations on migration imposed by the underlying technology - for example it may not be possible to migrate between different processors even with the same architecture, or between different types of hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>dconn</tt></i>:</span></td><td>destination host (a connection object)</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags</td></tr><tr><td><span class="term"><i><tt>dname</tt></i>:</span></td><td>(optional) rename domain to this at destination</td></tr><tr><td><span class="term"><i><tt>uri</tt></i>:</span></td><td>(optional) dest hostname/URI as seen from the source host</td></tr><tr><td><span class="term"><i><tt>bandwidth</tt></i>:</span></td><td>(optional) specify migration bandwidth limit in Mbps</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new domain object if the migration was successful, or NULL in case of error. Note that the new domain object exists in the scope of the destination connection (dconn).</td></tr></tbody></table></div><h3><a name="virDomainPinVcpu" id="virDomainPinVcpu"><code>virDomainPinVcpu</code></a></h3><pre class="programlisting">int virDomainPinVcpu (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int vcpu, <br /> unsigned char * cpumap, <br /> int maplen)<br /> +</pre><p>Dynamically change the real CPUs which can be allocated to a virtual CPU. This function requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>vcpu</tt></i>:</span></td><td>virtual CPU number</td></tr><tr><td><span class="term"><i><tt>cpumap</tt></i>:</span></td><td>pointer to a bit map of real CPUs (in 8-bit bytes) (IN) Each bit set to 1 means that corresponding CPU is usable. Bytes are stored in little-endian order: CPU0-7, 8-15... In each byte, lowest CPU number is least significant bit.</td></tr><tr><td><span class="term"><i><tt>maplen</tt></i>:</span></td><td>number of bytes in cpumap, from 1 up to size of CPU map in underlying virtualization system (Xen...). If maplen < size, missing bytes are set to zero. If maplen > size, failure code is returned.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainReboot" id="virDomainReboot"><code>virDomainReboot</code></a></h3><pre class="programlisting">int virDomainReboot (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int flags)<br /> +</pre><p>Reboot a domain, the domain object is still usable there after but the domain OS is being stopped for a restart. Note that the guest OS may ignore the request.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>extra flags for the reboot operation, not used yet</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainRef" id="virDomainRef"><code>virDomainRef</code></a></h3><pre class="programlisting">int virDomainRef (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>Increment the reference count on the domain. For each additional call to this method, there shall be a corresponding call to <a href="libvirt-libvirt.html#virDomainFree">virDomainFree</a> to release the reference count, once the caller no longer needs the reference to this object. This method is typically useful for applications where multiple threads are using a connection, and it is required that the connection remain open until all threads have finished using it. ie, each new thread using a domain would increment the reference count.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>the domain to hold a reference on</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainRestore" id="virDomainRestore"><code>virDomainRestore</code></a></h3><pre class="programlisting">int virDomainRestore (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * from)<br /> +</pre><p>This method will restore a domain saved to disk by virDomainSave().</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>from</tt></i>:</span></td><td>path to the</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainResume" id="virDomainResume"><code>virDomainResume</code></a></h3><pre class="programlisting">int virDomainResume (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>Resume an suspended domain, the process is restarted from the state where it was frozen by calling virSuspendDomain(). This function may requires privileged access</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSave" id="virDomainSave"><code>virDomainSave</code></a></h3><pre class="programlisting">int virDomainSave (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to)<br /> +</pre><p>This method will suspend a domain and save its memory contents to a file on disk. After the call, if successful, the domain is not listed as running anymore (this may be a problem). Use virDomainRestore() to restore a domain after saving.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>to</tt></i>:</span></td><td>path for the output file</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetAutostart" id="virDomainSetAutostart"><code>virDomainSetAutostart</code></a></h3><pre class="programlisting">int virDomainSetAutostart (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int autostart)<br /> +</pre><p>Configure the domain to be automatically started when the host machine boots.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>whether the domain should be automatically started 0 or 1</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainSetMaxMemory" id="virDomainSetMaxMemory"><code>virDomainSetMaxMemory</code></a></h3><pre class="programlisting">int virDomainSetMaxMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)<br /> +</pre><p>Dynamically change the maximum amount of physical memory allocated to a domain. If domain is NULL, then this change the amount of memory reserved to Domain0 i.e. the domain where the application runs. This function requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>the memory size in kilobytes</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetMemory" id="virDomainSetMemory"><code>virDomainSetMemory</code></a></h3><pre class="programlisting">int virDomainSetMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)<br /> +</pre><p>Dynamically change the target amount of physical memory allocated to a domain. If domain is NULL, then this change the amount of memory reserved to Domain0 i.e. the domain where the application runs. This function may requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>the memory size in kilobytes</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetSchedulerParameters" id="virDomainSetSchedulerParameters"><code>virDomainSetSchedulerParameters</code></a></h3><pre class="programlisting">int virDomainSetSchedulerParameters (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int nparams)<br /> +</pre><p>Change the scheduler parameters</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>params</tt></i>:</span></td><td>pointer to scheduler parameter objects</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>number of scheduler parameter (this value should be same or less than the returned value nparams of virDomainGetSchedulerType)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success.</td></tr></tbody></table></div><h3><a name="virDomainSetVcpus" id="virDomainSetVcpus"><code>virDomainSetVcpus</code></a></h3><pre class="programlisting">int virDomainSetVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int nvcpus)<br /> +</pre><p>Dynamically change the number of virtual CPUs used by the domain. Note that this call may fail if the underlying virtualization hypervisor does not support it or if growing the number is arbitrary limited. This function requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>nvcpus</tt></i>:</span></td><td>the new number of virtual CPUs for this domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainShutdown" id="virDomainShutdown"><code>virDomainShutdown</code></a></h3><pre class="programlisting">int virDomainShutdown (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>Shutdown a domain, the domain object is still usable there after but the domain OS is being stopped. Note that the guest OS may ignore the request. TODO: should we add an option for reboot, knowing it may not be doable in the general case ?</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSuspend" id="virDomainSuspend"><code>virDomainSuspend</code></a></h3><pre class="programlisting">int virDomainSuspend (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>Suspends an active domain, the process is frozen without further access to CPU resources and I/O but the memory used by the domain at the hypervisor level will stay allocated. Use virDomainResume() to reactivate the domain. This function may requires privileged access.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainUndefine" id="virDomainUndefine"><code>virDomainUndefine</code></a></h3><pre class="programlisting">int virDomainUndefine (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br /> +</pre><p>Undefine a domain but does not stop it if it is running</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to a defined domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virEventAddHandleFunc" id="virEventAddHandleFunc"><code>virEventAddHandleFunc</code></a></h3><pre class="programlisting">typedef int (*virEventAddHandleFunc ) (int fd, <br /> int event, <br /> <a href="libvirt-libvirt.html#virEventHandleCallback">virEventHandleCallback</a> cb, <br /> void * opaque, <br /> <a href="libvirt-libvirt.html#virFreeCallback">virFreeCallback</a> ff) +</pre><p>Part of the EventImpl, this callback Adds a file handle callback to listen for specific events. The same file handle can be registered multiple times provided the requested event sets are non-overlapping If the opaque user data requires free'ing when the handle is unregistered, then a 2nd callback can be supplied for this purpose.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>fd</tt></i>:</span></td><td>file descriptor to listen on</td></tr><tr><td><span class="term"><i><tt>event</tt></i>:</span></td><td>bitset of events on which to fire the callback</td></tr><tr><td><span class="term"><i><tt>cb</tt></i>:</span></td><td>the callback to be called when an event occurrs</td></tr><tr><td><span class="term"><i><tt>opaque</tt></i>:</span></td><td>user data to pass to the callback</td></tr><tr><td><span class="term"><i><tt>ff</tt></i>:</span></td><td>the callback invoked to free opaque data blob</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a handle watch number to be used for updating and unregistering for events</td></tr></tbody></table></div><br /><h3><a name="virEventAddTimeoutFunc" id="virEventAddTimeoutFunc"><code>virEventAddTimeoutFunc</code></a></h3><pre class="programlisting">typedef int (*virEventAddTimeoutFunc ) (int timeout, <br /> <a href="libvirt-libvirt.html#virEventTimeoutCallback">virEventTimeoutCallback</a> cb, <br /> void * opaque, <br /> <a href="libvirt-libvirt.html#virFreeCallback">virFreeCallback</a> ff) +</pre><p>Part of the EventImpl, this user-defined callback handles adding an event timeout. If the opaque user data requires free'ing when the handle is unregistered, then a 2nd callback can be supplied for this purpose.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>timeout</tt></i>:</span></td><td>The timeout to monitor</td></tr><tr><td><span class="term"><i><tt>cb</tt></i>:</span></td><td>the callback to call when timeout has expired</td></tr><tr><td><span class="term"><i><tt>opaque</tt></i>:</span></td><td>user data to pass to the callback</td></tr><tr><td><span class="term"><i><tt>ff</tt></i>:</span></td><td>the callback invoked to free opaque data blob</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a timer value</td></tr></tbody></table></div><br /><h3><a name="virEventHandleCallback" id="virEventHandleCallback"><code>virEventHandleCallback</code></a></h3><pre class="programlisting">typedef void (*virEventHandleCallback ) (int watch, <br /> int fd, <br /> int events, <br /> void * opaque) +</pre><p>Callback for receiving file handle events. The callback will be invoked once for each event which is pending.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>watch</tt></i>:</span></td><td>watch on which the event occurred</td></tr><tr><td><span class="term"><i><tt>fd</tt></i>:</span></td><td>file handle on which the event occurred</td></tr><tr><td><span class="term"><i><tt>events</tt></i>:</span></td><td>bitset of events from <a href="libvirt-libvirt.html#virEventHandleType">virEventHandleType</a> constants</td></tr><tr><td><span class="term"><i><tt>opaque</tt></i>:</span></td><td>user data registered with handle</td></tr></tbody></table></div><br /><h3><a name="virEventRegisterImpl" id="virEventRegisterImpl"><code>virEventRegisterImpl</code></a></h3><pre class="programlisting">void virEventRegisterImpl (<a href="libvirt-libvirt.html#virEventAddHandleFunc">virEventAddHandleFunc</a> addHandle, <br /> <a href="libvirt-libvirt.html#virEventUpdateHandleFunc">virEventUpdateHandleFunc</a> updateHandle, <br /> <a href="libvirt-libvirt.html#virEventRemoveHandleFunc">virEventRemoveHandleFunc</a> removeHandle, <br /> <a href="libvirt-libvirt.html#virEventAddTimeoutFunc">virEventAddTimeoutFunc</a> addTimeout, <br /> <a href="libvirt-libvirt.html#virEventUpdateTimeoutFunc">virEventUpdateTimeoutFunc</a> updateTimeout, <br /> <a href="libvirt-libvirt.html#virEventRemoveTimeoutFunc">virEventRemoveTimeoutFunc</a> removeTimeout)<br /> +</pre><p></p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>addHandle</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>updateHandle</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>removeHandle</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>addTimeout</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>updateTimeout</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>removeTimeout</tt></i>:</span></td><td></td></tr></tbody></table></div><h3><a name="virEventRemoveHandleFunc" id="virEventRemoveHandleFunc"><code>virEventRemoveHandleFunc</code></a></h3><pre class="programlisting">typedef int (*virEventRemoveHandleFunc) (int watch) +</pre><p>Part of the EventImpl, this user-provided callback is notified when an fd is no longer being listened on. If a virEventHandleFreeFunc was supplied when the handle was registered, it will be invoked some time during, or after this function call, when it is safe to release the user data.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>watch</tt></i>:</span></td><td>file descriptor watch to stop listening on</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td></td></tr></tbody></table></div><br /><h3><a name="virEventRemoveTimeoutFunc" id="virEventRemoveTimeoutFunc"><code>virEventRemoveTimeoutFunc</code></a></h3><pre class="programlisting">typedef int (*virEventRemoveTimeoutFunc) (int timer) +</pre><p>Part of the EventImpl, this user-defined callback removes a timer If a virEventTimeoutFreeFunc was supplied when the handle was registered, it will be invoked some time during, or after this function call, when it is safe to release the user data.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>timer</tt></i>:</span></td><td>the timer to remove</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><br /><h3><a name="virEventTimeoutCallback" id="virEventTimeoutCallback"><code>virEventTimeoutCallback</code></a></h3><pre class="programlisting">typedef void (*virEventTimeoutCallback ) (int timer, <br /> void * opaque) +</pre><p>callback for receiving timer events</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>timer</tt></i>:</span></td><td>timer id emitting the event</td></tr><tr><td><span class="term"><i><tt>opaque</tt></i>:</span></td><td>user data registered with handle</td></tr></tbody></table></div><br /><h3><a name="virEventUpdateHandleFunc" id="virEventUpdateHandleFunc"><code>virEventUpdateHandleFunc</code></a></h3><pre class="programlisting">typedef void (*virEventUpdateHandleFunc) (int watch, <br /> int event) +</pre><p>Part of the EventImpl, this user-provided callback is notified when events to listen on change</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>watch</tt></i>:</span></td><td>file descriptor watch to modify</td></tr><tr><td><span class="term"><i><tt>event</tt></i>:</span></td><td>new events to listen on</td></tr></tbody></table></div><br /><h3><a name="virEventUpdateTimeoutFunc" id="virEventUpdateTimeoutFunc"><code>virEventUpdateTimeoutFunc</code></a></h3><pre class="programlisting">typedef void (*virEventUpdateTimeoutFunc) (int timer, <br /> int timeout) +</pre><p>Part of the EventImpl, this user-defined callback updates an event timeout.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>timer</tt></i>:</span></td><td>the timer to modify</td></tr><tr><td><span class="term"><i><tt>timeout</tt></i>:</span></td><td>the new timeout value</td></tr></tbody></table></div><br /><h3><a name="virFreeCallback" id="virFreeCallback"><code>virFreeCallback</code></a></h3><pre class="programlisting">typedef void (*virFreeCallback ) (void * opaque) +</pre><p></p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>opaque</tt></i>:</span></td><td></td></tr></tbody></table></div><br /><h3><a name="virGetVersion" id="virGetVersion"><code>virGetVersion</code></a></h3><pre class="programlisting">int virGetVersion (unsigned long * libVer, <br /> const char * type, <br /> unsigned long * typeVer)<br /> +</pre><p>Provides two information back, @libVer is the version of the library while @typeVer will be the version of the hypervisor type @type against which the library was compiled. If @type is NULL, "Xen" is assumed, if @type is unknown or not available, an error code will be returned and @typeVer will be 0.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>libVer</tt></i>:</span></td><td>return value for the library version (OUT)</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>the type of connection/driver looked at</td></tr><tr><td><span class="term"><i><tt>typeVer</tt></i>:</span></td><td>return value for the version of the hypervisor (OUT)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of failure, 0 otherwise, and values for @libVer and @typeVer have the format major * 1,000,000 + minor * 1,000 + release.</td></tr></tbody></table></div><h3><a name="virInitialize" id="virInitialize"><code>virInitialize</code></a></h3><pre class="programlisting">int virInitialize (void)<br /> +</pre><p>Initialize the library. It's better to call this routine at startup in multithreaded applications to avoid potential race when initializing the library.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNetworkCreate" id="virNetworkCreate"><code>virNetworkCreate</code></a></h3><pre class="programlisting">int virNetworkCreate (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br /> +</pre><p>Create and start a defined network. If the call succeed the network moves from the defined to the running networks pools.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>pointer to a defined network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNetworkCreateXML" id="virNetworkCreateXML"><code>virNetworkCreateXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkCreateXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc)<br /> +</pre><p>Create and start a new virtual network, based on an XML description similar to the one returned by virNetworkGetXMLDesc()</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>an XML description of the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure</td></tr></tbody></table></div><h3><a name="virNetworkDefineXML" id="virNetworkDefineXML"><code>virNetworkDefineXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)<br /> +</pre><p>Define a network, but does not create it</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>the XML description for the network, preferably in UTF-8</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a pointer to the network otherwise</td></tr></tbody></table></div><h3><a name="virNetworkDestroy" id="virNetworkDestroy"><code>virNetworkDestroy</code></a></h3><pre class="programlisting">int virNetworkDestroy (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br /> +</pre><p>Destroy the network object. The running instance is shutdown if not down already and all resources used by it are given back to the hypervisor. This does not free the associated <a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> object. This function may require privileged access</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkFree" id="virNetworkFree"><code>virNetworkFree</code></a></h3><pre class="programlisting">int virNetworkFree (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br /> +</pre><p>Free the network object. The running instance is kept alive. The data structure is freed and should not be used thereafter.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkGetAutostart" id="virNetworkGetAutostart"><code>virNetworkGetAutostart</code></a></h3><pre class="programlisting">int virNetworkGetAutostart (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int * autostart)<br /> +</pre><p>Provides a boolean value indicating whether the network configured to be automatically started when the host machine boots.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>the value returned</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetBridgeName" id="virNetworkGetBridgeName"><code>virNetworkGetBridgeName</code></a></h3><pre class="programlisting">char * virNetworkGetBridgeName (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br /> +</pre><p>Provides a bridge interface name to which a domain may connect a network interface in order to join the network.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated interface name, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virNetworkGetConnect" id="virNetworkGetConnect"><code>virNetworkGetConnect</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virNetworkGetConnect (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> net)<br /> +</pre><p>Provides the connection pointer associated with a network. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the network object together.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>net</tt></i>:</span></td><td>pointer to a network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkGetName" id="virNetworkGetName"><code>virNetworkGetName</code></a></h3><pre class="programlisting">const char * virNetworkGetName (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br /> +</pre><p>Get the public name for that network</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the name or NULL, the string need not be deallocated its lifetime will be the same as the network object.</td></tr></tbody></table></div><h3><a name="virNetworkGetUUID" id="virNetworkGetUUID"><code>virNetworkGetUUID</code></a></h3><pre class="programlisting">int virNetworkGetUUID (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> unsigned char * uuid)<br /> +</pre><p>Get the UUID for a network</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetUUIDString" id="virNetworkGetUUIDString"><code>virNetworkGetUUIDString</code></a></h3><pre class="programlisting">int virNetworkGetUUIDString (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> char * buf)<br /> +</pre><p>Get the UUID for a network as string. For more information about UUID see RFC4122.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetXMLDesc" id="virNetworkGetXMLDesc"><code>virNetworkGetXMLDesc</code></a></h3><pre class="programlisting">char * virNetworkGetXMLDesc (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int flags)<br /> +</pre><p>Provide an XML description of the network. The description may be reused later to relaunch the network with virNetworkCreateXML().</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>and OR'ed set of extraction flags, not used yet</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByName" id="virNetworkLookupByName"><code>virNetworkLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br /> +</pre><p>Try to lookup a network on the given hypervisor based on its name.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByUUID" id="virNetworkLookupByUUID"><code>virNetworkLookupByUUID</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br /> +</pre><p>Try to lookup a network on the given hypervisor based on its UUID.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>the raw UUID for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByUUIDString" id="virNetworkLookupByUUIDString"><code>virNetworkLookupByUUIDString</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br /> +</pre><p>Try to lookup a network on the given hypervisor based on its UUID.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>the string UUID for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkRef" id="virNetworkRef"><code>virNetworkRef</code></a></h3><pre class="programlisting">int virNetworkRef (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br /> +</pre><p>Increment the reference count on the network. For each additional call to this method, there shall be a corresponding call to <a href="libvirt-libvirt.html#virNetworkFree">virNetworkFree</a> to release the reference count, once the caller no longer needs the reference to this object. This method is typically useful for applications where multiple threads are using a connection, and it is required that the connection remain open until all threads have finished using it. ie, each new thread using a network would increment the reference count.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>the network to hold a reference on</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkSetAutostart" id="virNetworkSetAutostart"><code>virNetworkSetAutostart</code></a></h3><pre class="programlisting">int virNetworkSetAutostart (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int autostart)<br /> +</pre><p>Configure the network to be automatically started when the host machine boots.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>whether the network should be automatically started 0 or 1</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkUndefine" id="virNetworkUndefine"><code>virNetworkUndefine</code></a></h3><pre class="programlisting">int virNetworkUndefine (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br /> +</pre><p>Undefine a network but does not stop it if it is running</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>pointer to a defined network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNodeDeviceCreateXML" id="virNodeDeviceCreateXML"><code>virNodeDeviceCreateXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> virNodeDeviceCreateXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)<br /> +</pre><p>Create a new device on the VM host machine, for example, virtual HBAs created using vport_create.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>string containing an XML description of the device to be created</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>callers should always pass 0</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a node device object if successful, NULL in case of failure</td></tr></tbody></table></div><h3><a name="virNodeDeviceDestroy" id="virNodeDeviceDestroy"><code>virNodeDeviceDestroy</code></a></h3><pre class="programlisting">int virNodeDeviceDestroy (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev)<br /> +</pre><p>Destroy the device object. The virtual device is removed from the host operating system. This function may require privileged access</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dev</tt></i>:</span></td><td>a device object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNodeDeviceDettach" id="virNodeDeviceDettach"><code>virNodeDeviceDettach</code></a></h3><pre class="programlisting">int virNodeDeviceDettach (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev)<br /> +</pre><p>Dettach the node device from the node itself so that it may be assigned to a guest domain. Depending on the hypervisor, this may involve operations such as unbinding any device drivers from the device, binding the device to a dummy device driver and resetting the device. If the device is currently in use by the node, this method may fail. Once the device is not assigned to any guest, it may be re-attached to the node using the virNodeDeviceReattach() method.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dev</tt></i>:</span></td><td>pointer to the node device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNodeDeviceFree" id="virNodeDeviceFree"><code>virNodeDeviceFree</code></a></h3><pre class="programlisting">int virNodeDeviceFree (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev)<br /> +</pre><p>Drops a reference to the node device, freeing it if this was the last reference.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dev</tt></i>:</span></td><td>pointer to the node device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the 0 for success, -1 for error.</td></tr></tbody></table></div><h3><a name="virNodeDeviceGetName" id="virNodeDeviceGetName"><code>virNodeDeviceGetName</code></a></h3><pre class="programlisting">const char * virNodeDeviceGetName (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev)<br /> +</pre><p>Just return the device name</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dev</tt></i>:</span></td><td>the device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the device name or NULL in case of error</td></tr></tbody></table></div><h3><a name="virNodeDeviceGetParent" id="virNodeDeviceGetParent"><code>virNodeDeviceGetParent</code></a></h3><pre class="programlisting">const char * virNodeDeviceGetParent (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev)<br /> +</pre><p>Accessor for the parent of the device</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dev</tt></i>:</span></td><td>the device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the name of the device's parent, or NULL if the device has no parent.</td></tr></tbody></table></div><h3><a name="virNodeDeviceGetXMLDesc" id="virNodeDeviceGetXMLDesc"><code>virNodeDeviceGetXMLDesc</code></a></h3><pre class="programlisting">char * virNodeDeviceGetXMLDesc (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev, <br /> unsigned int flags)<br /> +</pre><p>Fetch an XML document describing all aspects of the device.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dev</tt></i>:</span></td><td>pointer to the node device</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for XML generation (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the XML document, or NULL on error</td></tr></tbody></table></div><h3><a name="virNodeDeviceListCaps" id="virNodeDeviceListCaps"><code>virNodeDeviceListCaps</code></a></h3><pre class="programlisting">int virNodeDeviceListCaps (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev, <br /> char ** const names, <br /> int maxnames)<br /> +</pre><p>Lists the names of the capabilities supported by the device.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dev</tt></i>:</span></td><td>the device</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array to collect the list of capability names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of @names</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of capability names listed in @names.</td></tr></tbody></table></div><h3><a name="virNodeDeviceLookupByName" id="virNodeDeviceLookupByName"><code>virNodeDeviceLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> virNodeDeviceLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br /> +</pre><p>Lookup a node device by its name.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>unique device name</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> if found, NULL otherwise.</td></tr></tbody></table></div><h3><a name="virNodeDeviceNumOfCaps" id="virNodeDeviceNumOfCaps"><code>virNodeDeviceNumOfCaps</code></a></h3><pre class="programlisting">int virNodeDeviceNumOfCaps (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev)<br /> +</pre><p>Accessor for the number of capabilities supported by the device.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dev</tt></i>:</span></td><td>the device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of capabilities supported by the device.</td></tr></tbody></table></div><h3><a name="virNodeDeviceReAttach" id="virNodeDeviceReAttach"><code>virNodeDeviceReAttach</code></a></h3><pre class="programlisting">int virNodeDeviceReAttach (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev)<br /> +</pre><p>Re-attach a previously dettached node device to the node so that it may be used by the node again. Depending on the hypervisor, this may involve operations such as resetting the device, unbinding it from a dummy device driver and binding it to its appropriate driver. If the device is currently in use by a guest, this method may fail.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dev</tt></i>:</span></td><td>pointer to the node device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNodeDeviceRef" id="virNodeDeviceRef"><code>virNodeDeviceRef</code></a></h3><pre class="programlisting">int virNodeDeviceRef (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev)<br /> +</pre><p>Increment the reference count on the dev. For each additional call to this method, there shall be a corresponding call to <a href="libvirt-libvirt.html#virNodeDeviceFree">virNodeDeviceFree</a> to release the reference count, once the caller no longer needs the reference to this object. This method is typically useful for applications where multiple threads are using a connection, and it is required that the connection remain open until all threads have finished using it. ie, each new thread using a dev would increment the reference count.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dev</tt></i>:</span></td><td>the dev to hold a reference on</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNodeDeviceReset" id="virNodeDeviceReset"><code>virNodeDeviceReset</code></a></h3><pre class="programlisting">int virNodeDeviceReset (<a href="libvirt-libvirt.html#virNodeDevicePtr">virNodeDevicePtr</a> dev)<br /> +</pre><p>Reset a previously dettached node device to the node before or after assigning it to a guest. The exact reset semantics depends on the hypervisor and device type but, for example, KVM will attempt to reset PCI devices with a Function Level Reset, Secondary Bus Reset or a Power Management D-State reset. If the reset will affect other devices which are currently in use, this function may fail.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dev</tt></i>:</span></td><td>pointer to the node device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNodeGetCellsFreeMemory" id="virNodeGetCellsFreeMemory"><code>virNodeGetCellsFreeMemory</code></a></h3><pre class="programlisting">int virNodeGetCellsFreeMemory (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long long * freeMems, <br /> int startCell, <br /> int maxCells)<br /> +</pre><p>This call returns the amount of free memory in one or more NUMA cells. The @freeMems array must be allocated by the caller and will be filled with the amount of free memory in kilobytes for each cell requested, starting with startCell (in freeMems[0]), up to either (startCell + maxCells), or the number of additional cells in the node, whichever is smaller.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>freeMems</tt></i>:</span></td><td>pointer to the array of unsigned long long</td></tr><tr><td><span class="term"><i><tt>startCell</tt></i>:</span></td><td>index of first cell to return freeMems info on.</td></tr><tr><td><span class="term"><i><tt>maxCells</tt></i>:</span></td><td>Maximum number of cells for which freeMems information can be returned.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of entries filled in freeMems, or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virNodeGetFreeMemory" id="virNodeGetFreeMemory"><code>virNodeGetFreeMemory</code></a></h3><pre class="programlisting">unsigned long long virNodeGetFreeMemory (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br /> +</pre><p>provides the free memory available on the Node Note: most libvirt APIs provide memory sizes in kilobytes, but in this function the returned value is in bytes. Divide by 1024 as necessary.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the available free memory in bytes or 0 in case of error</td></tr></tbody></table></div><h3><a name="virNodeGetInfo" id="virNodeGetInfo"><code>virNodeGetInfo</code></a></h3><pre class="programlisting">int virNodeGetInfo (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virNodeInfoPtr">virNodeInfoPtr</a> info)<br /> +</pre><p>Extract hardware information about the node.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#virNodeInfo">virNodeInfo</a> structure allocated by the user</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNodeGetSecurityModel" id="virNodeGetSecurityModel"><code>virNodeGetSecurityModel</code></a></h3><pre class="programlisting">int virNodeGetSecurityModel (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virSecurityModelPtr">virSecurityModelPtr</a> secmodel)<br /> +</pre><p>Extract the security model of a hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>a connection object</td></tr><tr><td><span class="term"><i><tt>secmodel</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#virSecurityModel">virSecurityModel</a> structure</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure, and -2 if the operation is not supported (caller decides if that's an error).</td></tr></tbody></table></div><h3><a name="virNodeListDevices" id="virNodeListDevices"><code>virNodeListDevices</code></a></h3><pre class="programlisting">int virNodeListDevices (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * cap, <br /> char ** const names, <br /> int maxnames, <br /> unsigned int flags)<br /> +</pre><p>Collect the list of node devices, and store their names in @names If the optional 'cap' argument is non-NULL, then the count will be restricted to devices with the specified capability</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>cap</tt></i>:</span></td><td>capability name</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array to collect the list of node device names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of @names</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of node devices found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virNodeNumOfDevices" id="virNodeNumOfDevices"><code>virNodeNumOfDevices</code></a></h3><pre class="programlisting">int virNodeNumOfDevices (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * cap, <br /> unsigned int flags)<br /> +</pre><p>Provides the number of node devices. If the optional 'cap' argument is non-NULL, then the count will be restricted to devices with the specified capability</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>cap</tt></i>:</span></td><td>capability name</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of node devices or -1 in case of error</td></tr></tbody></table></div><h3><a name="virStoragePoolBuild" id="virStoragePoolBuild"><code>virStoragePoolBuild</code></a></h3><pre class="programlisting">int virStoragePoolBuild (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br /> +</pre><p>Build the underlying storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 upon failure</td></tr></tbody></table></div><h3><a name="virStoragePoolCreate" id="virStoragePoolCreate"><code>virStoragePoolCreate</code></a></h3><pre class="programlisting">int virStoragePoolCreate (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br /> +</pre><p>Starts an inactive storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be started</td></tr></tbody></table></div><h3><a name="virStoragePoolCreateXML" id="virStoragePoolCreateXML"><code>virStoragePoolCreateXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolCreateXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)<br /> +</pre><p>Create a new storage based on its XML description. The pool is not persistent, so its definition will disappear when it is destroyed, or if the host is restarted</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>XML description for new pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStoragePoolDefineXML" id="virStoragePoolDefineXML"><code>virStoragePoolDefineXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml, <br /> unsigned int flags)<br /> +</pre><p>Define a new inactive storage pool based on its XML description. The pool is persistent, until explicitly undefined.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>XML description for new pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStoragePoolDelete" id="virStoragePoolDelete"><code>virStoragePoolDelete</code></a></h3><pre class="programlisting">int virStoragePoolDelete (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br /> +</pre><p>Delete the underlying pool resources. This is a non-recoverable operation. The <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object itself is not free'd.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for obliteration process</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be obliterate</td></tr></tbody></table></div><h3><a name="virStoragePoolDestroy" id="virStoragePoolDestroy"><code>virStoragePoolDestroy</code></a></h3><pre class="programlisting">int virStoragePoolDestroy (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br /> +</pre><p>Destroy an active storage pool. This will deactivate the pool on the host, but keep any persistent config associated with it. If it has a persistent config it can later be restarted with virStoragePoolCreate(). This does not free the associated <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be destroyed</td></tr></tbody></table></div><h3><a name="virStoragePoolFree" id="virStoragePoolFree"><code>virStoragePoolFree</code></a></h3><pre class="programlisting">int virStoragePoolFree (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br /> +</pre><p>Free a storage pool object, releasing all memory associated with it. Does not change the state of the pool on the host.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be free'd.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetAutostart" id="virStoragePoolGetAutostart"><code>virStoragePoolGetAutostart</code></a></h3><pre class="programlisting">int virStoragePoolGetAutostart (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int * autostart)<br /> +</pre><p>Fetches the value of the autostart flag, which determines whether the pool is automatically started at boot time</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>location in which to store autostart flag</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolGetConnect" id="virStoragePoolGetConnect"><code>virStoragePoolGetConnect</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virStoragePoolGetConnect (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br /> +</pre><p>Provides the connection pointer associated with a storage pool. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the pool object together.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to a pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetInfo" id="virStoragePoolGetInfo"><code>virStoragePoolGetInfo</code></a></h3><pre class="programlisting">int virStoragePoolGetInfo (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> <a href="libvirt-libvirt.html#virStoragePoolInfoPtr">virStoragePoolInfoPtr</a> info)<br /> +</pre><p>Get volatile information about the storage pool such as free space / usage summary</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer at which to store info</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetName" id="virStoragePoolGetName"><code>virStoragePoolGetName</code></a></h3><pre class="programlisting">const char * virStoragePoolGetName (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br /> +</pre><p>Fetch the locally unique name of the storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the name of the pool, or NULL on error</td></tr></tbody></table></div><h3><a name="virStoragePoolGetUUID" id="virStoragePoolGetUUID"><code>virStoragePoolGetUUID</code></a></h3><pre class="programlisting">int virStoragePoolGetUUID (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned char * uuid)<br /> +</pre><p>Fetch the globally unique ID of the storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>buffer of <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes in size</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error;</td></tr></tbody></table></div><h3><a name="virStoragePoolGetUUIDString" id="virStoragePoolGetUUIDString"><code>virStoragePoolGetUUIDString</code></a></h3><pre class="programlisting">int virStoragePoolGetUUIDString (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char * buf)<br /> +</pre><p>Fetch the globally unique ID of the storage pool as a string</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>buffer of <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes in size</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error;</td></tr></tbody></table></div><h3><a name="virStoragePoolGetXMLDesc" id="virStoragePoolGetXMLDesc"><code>virStoragePoolGetXMLDesc</code></a></h3><pre class="programlisting">char * virStoragePoolGetXMLDesc (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br /> +</pre><p>Fetch an XML document describing all aspects of the storage pool. This is suitable for later feeding back into the <a href="libvirt-libvirt.html#virStoragePoolCreateXML">virStoragePoolCreateXML</a> method.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for XML format options (set of virDomainXMLFlags)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a XML document, or NULL on error</td></tr></tbody></table></div><h3><a name="virStoragePoolListVolumes" id="virStoragePoolListVolumes"><code>virStoragePoolListVolumes</code></a></h3><pre class="programlisting">int virStoragePoolListVolumes (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char ** const names, <br /> int maxnames)<br /> +</pre><p>Fetch list of storage volume names, limiting to at most maxnames.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array in which to storage volume names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names fetched, or -1 on error</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByName" id="virStoragePoolLookupByName"><code>virStoragePoolLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br /> +</pre><p>Fetch a storage pool based on its unique name</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByUUID" id="virStoragePoolLookupByUUID"><code>virStoragePoolLookupByUUID</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br /> +</pre><p>Fetch a storage pool based on its globally unique id</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>globally unique id of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByUUIDString" id="virStoragePoolLookupByUUIDString"><code>virStoragePoolLookupByUUIDString</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br /> +</pre><p>Fetch a storage pool based on its globally unique id</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>globally unique id of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByVolume" id="virStoragePoolLookupByVolume"><code>virStoragePoolLookupByVolume</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByVolume (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br /> +</pre><p>Fetch a storage pool which contains a particular volume</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolNumOfVolumes" id="virStoragePoolNumOfVolumes"><code>virStoragePoolNumOfVolumes</code></a></h3><pre class="programlisting">int virStoragePoolNumOfVolumes (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br /> +</pre><p>Fetch the number of storage volumes within a pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of storage pools, or -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolRef" id="virStoragePoolRef"><code>virStoragePoolRef</code></a></h3><pre class="programlisting">int virStoragePoolRef (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br /> +</pre><p>Increment the reference count on the pool. For each additional call to this method, there shall be a corresponding call to <a href="libvirt-libvirt.html#virStoragePoolFree">virStoragePoolFree</a> to release the reference count, once the caller no longer needs the reference to this object. This method is typically useful for applications where multiple threads are using a connection, and it is required that the connection remain open until all threads have finished using it. ie, each new thread using a pool would increment the reference count.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>the pool to hold a reference on</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolRefresh" id="virStoragePoolRefresh"><code>virStoragePoolRefresh</code></a></h3><pre class="programlisting">int virStoragePoolRefresh (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br /> +</pre><p>Request that the pool refresh its list of volumes. This may involve communicating with a remote server, and/or initializing new devices at the OS layer</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags to control refresh behaviour (currently unused, use 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the volume list was refreshed, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolSetAutostart" id="virStoragePoolSetAutostart"><code>virStoragePoolSetAutostart</code></a></h3><pre class="programlisting">int virStoragePoolSetAutostart (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int autostart)<br /> +</pre><p>Sets the autostart flag</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>new flag setting</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolUndefine" id="virStoragePoolUndefine"><code>virStoragePoolUndefine</code></a></h3><pre class="programlisting">int virStoragePoolUndefine (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br /> +</pre><p>Undefine an inactive storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStorageVolCreateXML" id="virStorageVolCreateXML"><code>virStorageVolCreateXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolCreateXML (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * xmldesc, <br /> unsigned int flags)<br /> +</pre><p>Create a storage volume within a pool based on an XML description. Not all pools support creation of volumes</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>xmldesc</tt></i>:</span></td><td>description of volume to create</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for creation (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the storage volume, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolCreateXMLFrom" id="virStorageVolCreateXMLFrom"><code>virStorageVolCreateXMLFrom</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolCreateXMLFrom (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * xmldesc, <br /> <a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> clonevol, <br /> unsigned int flags)<br /> +</pre><p>Create a storage volume in the parent pool, using the 'clonevol' volume as input. Information for the new volume (name, perms) are passed via a typical volume XML description.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to parent pool for the new volume</td></tr><tr><td><span class="term"><i><tt>xmldesc</tt></i>:</span></td><td>description of volume to create</td></tr><tr><td><span class="term"><i><tt>clonevol</tt></i>:</span></td><td>storage volume to use as input</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for creation (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the storage volume, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolDelete" id="virStorageVolDelete"><code>virStorageVolDelete</code></a></h3><pre class="programlisting">int virStorageVolDelete (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)<br /> +</pre><p>Delete the storage volume from the pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error</td></tr></tbody></table></div><h3><a name="virStorageVolFree" id="virStorageVolFree"><code>virStorageVolFree</code></a></h3><pre class="programlisting">int virStorageVolFree (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br /> +</pre><p>Release the storage volume handle. The underlying storage volume continues to exist.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetConnect" id="virStorageVolGetConnect"><code>virStorageVolGetConnect</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virStorageVolGetConnect (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br /> +</pre><p>Provides the connection pointer associated with a storage volume. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the volume object together.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to a pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virStorageVolGetInfo" id="virStorageVolGetInfo"><code>virStorageVolGetInfo</code></a></h3><pre class="programlisting">int virStorageVolGetInfo (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> <a href="libvirt-libvirt.html#virStorageVolInfoPtr">virStorageVolInfoPtr</a> info)<br /> +</pre><p>Fetches volatile information about the storage volume such as its current allocation</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer at which to store info</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on failure</td></tr></tbody></table></div><h3><a name="virStorageVolGetKey" id="virStorageVolGetKey"><code>virStorageVolGetKey</code></a></h3><pre class="programlisting">const char * virStorageVolGetKey (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br /> +</pre><p>Fetch the storage volume key. This is globally unique, so the same volume will have the same key no matter what host it is accessed from</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the volume key, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetName" id="virStorageVolGetName"><code>virStorageVolGetName</code></a></h3><pre class="programlisting">const char * virStorageVolGetName (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br /> +</pre><p>Fetch the storage volume name. This is unique within the scope of a pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the volume name, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetPath" id="virStorageVolGetPath"><code>virStorageVolGetPath</code></a></h3><pre class="programlisting">char * virStorageVolGetPath (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br /> +</pre><p>Fetch the storage volume path. Depending on the pool configuration this is either persistent across hosts, or dynamically assigned at pool startup. Consult pool documentation for information on getting the persistent naming</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the storage volume path, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetXMLDesc" id="virStorageVolGetXMLDesc"><code>virStorageVolGetXMLDesc</code></a></h3><pre class="programlisting">char * virStorageVolGetXMLDesc (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)<br /> +</pre><p>Fetch an XML document describing all aspects of the storage volume</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for XML generation (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the XML document, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByKey" id="virStorageVolLookupByKey"><code>virStorageVolLookupByKey</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByKey (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * key)<br /> +</pre><p>Fetch a pointer to a storage volume based on its globally unique key</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>key</tt></i>:</span></td><td>globally unique key</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByName" id="virStorageVolLookupByName"><code>virStorageVolLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByName (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * name)<br /> +</pre><p>Fetch a pointer to a storage volume based on its name within a pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name of storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByPath" id="virStorageVolLookupByPath"><code>virStorageVolLookupByPath</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByPath (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * path)<br /> +</pre><p>Fetch a pointer to a storage volume based on its locally (host) unique path</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>locally unique path</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolRef" id="virStorageVolRef"><code>virStorageVolRef</code></a></h3><pre class="programlisting">int virStorageVolRef (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br /> +</pre><p>Increment the reference count on the vol. For each additional call to this method, there shall be a corresponding call to <a href="libvirt-libvirt.html#virStorageVolFree">virStorageVolFree</a> to release the reference count, once the caller no longer needs the reference to this object. This method is typically useful for applications where multiple threads are using a connection, and it is required that the connection remain open until all threads have finished using it. ie, each new thread using a vol would increment the reference count.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>the vol to hold a reference on</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h1>Reference Manual for libvirt</h1><h2>Table of Contents</h2><ul><li><a href="libvirt-libvirt.html">libvirt</a>: core interfaces for the libvirt library</li><li><a href="libvirt-virterror.html">virterror</a>: error handling interfaces for the libvirt library</li></ul></div></div><div id="footer"><p id="sponsor"> Sponsored by:<br /><a href="http://et.redhat.com/"><img src="../et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p></div></body></html> diff -r 803e91762b86 docs/libvirt-api.xml --- a/docs/libvirt-api.xml Wed May 13 09:34:19 2009 -0400 +++ b/docs/libvirt-api.xml Wed May 13 09:41:37 2009 -0400 @@ -172,6 +172,7 @@ <exports symbol='virInitialize' type='function'/> <exports symbol='virNodeDeviceGetName' type='function'/> <exports symbol='virStoragePoolSetAutostart' type='function'/> + <exports symbol='virConnectDomainXMLFromNative' type='function'/> <exports symbol='virNodeDeviceDettach' type='function'/> <exports symbol='virDomainGetSecurityLabel' type='function'/> <exports symbol='virConnectDomainEventDeregister' type='function'/> @@ -212,6 +213,7 @@ <exports symbol='virNetworkGetAutostart' type='function'/> <exports symbol='virNetworkGetBridgeName' type='function'/> <exports symbol='virStorageVolGetXMLDesc' type='function'/> + <exports symbol='virConnectDomainXMLToNative' type='function'/> <exports symbol='virDomainSetSchedulerParameters' type='function'/> <exports symbol='virConnectGetType' type='function'/> <exports symbol='virStorageVolCreateXML' type='function'/> @@ -371,11 +373,10 @@ <exports symbol='VIR_ERR_INVALID_CONN' type='enum'/> <exports symbol='VIR_ERR_NONE' type='enum'/> <exports symbol='VIR_ERR_OK' type='enum'/> - <exports symbol='VIR_FROM_XENXM' type='enum'/> <exports symbol='VIR_FROM_NETWORK' type='enum'/> <exports symbol='VIR_ERR_XML_DETAIL' type='enum'/> <exports symbol='VIR_FROM_NET' type='enum'/> - <exports symbol='VIR_FROM_XENSTORE' type='enum'/> + <exports symbol='VIR_FROM_XENXM' type='enum'/> <exports symbol='VIR_ERR_NO_NAME' type='enum'/> <exports symbol='VIR_ERR_NO_ROOT' type='enum'/> <exports symbol='VIR_ERR_OPERATION_FAILED' type='enum'/> @@ -384,6 +385,7 @@ <exports symbol='VIR_ERR_DRIVER_FULL' type='enum'/> <exports symbol='VIR_ERR_HTTP_ERROR' type='enum'/> <exports symbol='VIR_ERR_INVALID_NODE_DEVICE' type='enum'/> + <exports symbol='VIR_FROM_XENSTORE' type='enum'/> <exports symbol='VIR_ERR_PARSE_FAILED' type='enum'/> <exports symbol='VIR_ERR_NO_SOURCE' type='enum'/> <exports symbol='VIR_FROM_DOMAIN' type='enum'/> @@ -871,6 +873,22 @@ see note above'/> <arg name='opaque' type='void *' info='opaque data to pass on to the callback'/> <arg name='freecb' type='virFreeCallback' info='optional function to deallocate opaque when not used anymore'/> </function> + <function name='virConnectDomainXMLFromNative' file='libvirt' module='libvirt'> + <info>Reads native configuration data describing a domain, and generates libvirt domain XML. The format of the native data is hypervisor dependant.</info> + <return type='char *' info='a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.'/> + <arg name='conn' type='virConnectPtr' info='a connection object'/> + <arg name='nativeFormat' type='const char *' info='configuration format importing from'/> + <arg name='nativeConfig' type='const char *' info='the configuration data to import'/> + <arg name='flags' type='unsigned int' info='currently unused, pass 0'/> + </function> + <function name='virConnectDomainXMLToNative' file='libvirt' module='libvirt'> + <info>Reads a domain XML configuration document, and generates generates a native configuration file describing the domain. The format of the native data is hypervisor dependant.</info> + <return type='char *' info='a 0 terminated UTF-8 encoded native config datafile, or NULL in case of error. the caller must free() the returned value.'/> + <arg name='conn' type='virConnectPtr' info='a connection object'/> + <arg name='nativeFormat' type='const char *' info='configuration format exporting to'/> + <arg name='domainXml' type='const char *' info='the domain configuration to export'/> + <arg name='flags' type='unsigned int' info='currently unused, pass 0'/> + </function> <function name='virConnectFindStoragePoolSources' file='libvirt' module='libvirt'> <info>Talks to a storage backend and attempts to auto-discover the set of available storage pool sources. e.g. For iSCSI this would be a set of iSCSI targets. For NFS this would be a list of exported paths. The srcSpec (optional for some storage pool types, e.g. local ones) is an instance of the storage pool's source element specifying where to look for the pools. srcSpec is not required for some types (e.g., those querying local storage resources only)</info> <return type='char *' info='an xml document consisting of a SourceList element containing a source document appropriate to the given pool type for each discovered source.'/> diff -r 803e91762b86 docs/libvirt-refs.xml --- a/docs/libvirt-refs.xml Wed May 13 09:34:19 2009 -0400 +++ b/docs/libvirt-refs.xml Wed May 13 09:41:37 2009 -0400 @@ -199,6 +199,8 @@ <reference name='virConnectDomainEventCallback' href='html/libvirt-libvirt.html#virConnectDomainEventCallback'/> <reference name='virConnectDomainEventDeregister' href='html/libvirt-libvirt.html#virConnectDomainEventDeregister'/> <reference name='virConnectDomainEventRegister' href='html/libvirt-libvirt.html#virConnectDomainEventRegister'/> + <reference name='virConnectDomainXMLFromNative' href='html/libvirt-libvirt.html#virConnectDomainXMLFromNative'/> + <reference name='virConnectDomainXMLToNative' href='html/libvirt-libvirt.html#virConnectDomainXMLToNative'/> <reference name='virConnectFindStoragePoolSources' href='html/libvirt-libvirt.html#virConnectFindStoragePoolSources'/> <reference name='virConnectFlags' href='html/libvirt-libvirt.html#virConnectFlags'/> <reference name='virConnectGetCapabilities' href='html/libvirt-libvirt.html#virConnectGetCapabilities'/> @@ -629,6 +631,8 @@ <ref name='virConnectDomainEventCallback'/> <ref name='virConnectDomainEventDeregister'/> <ref name='virConnectDomainEventRegister'/> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectFindStoragePoolSources'/> <ref name='virConnectFlags'/> <ref name='virConnectGetCapabilities'/> @@ -954,6 +958,8 @@ </type> <type name='unsigned int'> <ref name='virConnectAuthCallbackPtr'/> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectFindStoragePoolSources'/> <ref name='virDomainBlockPeek'/> <ref name='virDomainCreateLinux'/> @@ -1013,6 +1019,8 @@ <ref name='virConnectDomainEventCallback'/> <ref name='virConnectDomainEventDeregister'/> <ref name='virConnectDomainEventRegister'/> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectFindStoragePoolSources'/> <ref name='virConnectGetCapabilities'/> <ref name='virConnectGetHostname'/> @@ -1367,6 +1375,8 @@ <ref name='virConnectDomainEventCallback'/> <ref name='virConnectDomainEventDeregister'/> <ref name='virConnectDomainEventRegister'/> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectFindStoragePoolSources'/> <ref name='virConnectFlags'/> <ref name='virConnectGetCapabilities'/> @@ -2208,6 +2218,10 @@ <word name='Read-Only'> <ref name='virConnectGetVersion'/> </word> + <word name='Reads'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> + </word> <word name='Reboot'> <ref name='virDomainReboot'/> </word> @@ -2340,6 +2354,8 @@ <ref name='VIR_USE_CPU'/> </word> <word name='UTF-8'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virDomainDefineXML'/> <ref name='virDomainGetXMLDesc'/> <ref name='virNetworkDefineXML'/> @@ -2936,6 +2952,8 @@ </word> <word name='caller'> <ref name='cpumap'/> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectGetHostname'/> <ref name='virConnectGetURI'/> <ref name='virConnectListDefinedStoragePools'/> @@ -3112,9 +3130,12 @@ <ref name='virResetLastError'/> </word> <word name='config'> + <ref name='virConnectDomainXMLToNative'/> <ref name='virStoragePoolDestroy'/> </word> <word name='configuration'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virStorageVolGetPath'/> </word> <word name='configured'> @@ -3268,6 +3289,8 @@ <ref name='virStorageVolGetInfo'/> </word> <word name='currently'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virDomainCoreDump'/> <ref name='virNodeDeviceDettach'/> <ref name='virNodeDeviceReAttach'/> @@ -3282,6 +3305,8 @@ <ref name='virConnSetErrorFunc'/> <ref name='virConnectDomainEventCallback'/> <ref name='virConnectDomainEventRegister'/> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virDomainFree'/> <ref name='virErrorFunc'/> <ref name='virEventAddHandleFunc'/> @@ -3293,6 +3318,9 @@ <ref name='virNetworkFree'/> <ref name='virSetErrorFunc'/> </word> + <word name='datafile'> + <ref name='virConnectDomainXMLToNative'/> + </word> <word name='dconn'> <ref name='virDomainMigrate'/> </word> @@ -3342,6 +3370,10 @@ <ref name='virConnectDomainEventDeregister'/> <ref name='virConnectDomainEventRegister'/> </word> + <word name='dependant'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> + </word> <word name='depends'> <ref name='virNodeDeviceReset'/> </word> @@ -3352,6 +3384,8 @@ <ref name='virDomainGetVcpus'/> </word> <word name='describing'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virNodeDeviceGetXMLDesc'/> <ref name='virStoragePoolGetXMLDesc'/> <ref name='virStorageVolGetXMLDesc'/> @@ -3453,6 +3487,7 @@ <ref name='virDomainShutdown'/> </word> <word name='document'> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectFindStoragePoolSources'/> <ref name='virNodeDeviceGetXMLDesc'/> <ref name='virStoragePoolGetXMLDesc'/> @@ -3573,6 +3608,8 @@ <ref name='virConnectDomainEventRegister'/> </word> <word name='encoded'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virDomainGetXMLDesc'/> <ref name='virNetworkGetXMLDesc'/> </word> @@ -3648,8 +3685,14 @@ <ref name='virDomainDefineXML'/> <ref name='virStoragePoolDefineXML'/> </word> + <word name='export'> + <ref name='virConnectDomainXMLToNative'/> + </word> <word name='exported'> <ref name='virConnectFindStoragePoolSources'/> + </word> + <word name='exporting'> + <ref name='virConnectDomainXMLToNative'/> </word> <word name='extra'> <ref name='_virError'/> @@ -3713,6 +3756,7 @@ <ref name='virDomainInterfaceStats'/> </word> <word name='file'> + <ref name='virConnectDomainXMLToNative'/> <ref name='virDomainBlockPeek'/> <ref name='virDomainCoreDump'/> <ref name='virDomainSave'/> @@ -3794,6 +3838,8 @@ <ref name='virDomainMigrate'/> </word> <word name='format'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virDomainGetVcpus'/> <ref name='virGetVersion'/> <ref name='virStoragePoolGetXMLDesc'/> @@ -3829,6 +3875,8 @@ <word name='free'> <ref name='_virStoragePoolInfo'/> <ref name='virConnCopyLastError'/> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectGetCapabilities'/> <ref name='virCopyLastError'/> <ref name='virDomainDestroy'/> @@ -3873,6 +3921,7 @@ <ref name='_virVcpuInfo'/> <ref name='virConnCopyLastError'/> <ref name='virConnGetLastError'/> + <ref name='virConnectDomainXMLFromNative'/> <ref name='virDomainBlockPeek'/> <ref name='virDomainCreate'/> <ref name='virDomainGetVcpus'/> @@ -3912,6 +3961,10 @@ <letter name='g'> <word name='general'> <ref name='virDomainShutdown'/> + </word> + <word name='generates'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> </word> <word name='generation'> <ref name='virNodeDeviceGetXMLDesc'/> @@ -4115,6 +4168,12 @@ <word name='image'> <ref name='virDomainMemoryPeek'/> </word> + <word name='import'> + <ref name='virConnectDomainXMLFromNative'/> + </word> + <word name='importing'> + <ref name='virConnectDomainXMLFromNative'/> + </word> <word name='imposed'> <ref name='virDomainMigrate'/> </word> @@ -4207,6 +4266,7 @@ </word> <word name='instance'> <ref name='nodeinfo'/> + <ref name='virConnectDomainXMLFromNative'/> <ref name='virConnectFindStoragePoolSources'/> <ref name='virDomainDestroy'/> <ref name='virDomainFree'/> @@ -4420,6 +4480,7 @@ <ref name='virConnectGetType'/> </word> <word name='libvirt'> + <ref name='virConnectDomainXMLFromNative'/> <ref name='virConnectOpen'/> <ref name='virConnectOpenAuth'/> <ref name='virConnectOpenReadOnly'/> @@ -4737,6 +4798,8 @@ </word> <word name='must'> <ref name='cpumap'/> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectGetCapabilities'/> <ref name='virConnectGetHostname'/> <ref name='virConnectGetURI'/> @@ -4775,6 +4838,10 @@ <ref name='_virDomainInfo'/> <ref name='_virVcpuInfo'/> </word> + <word name='native'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> + </word> <word name='necessary'> <ref name='VIR_NODEINFO_MAXCPUS'/> <ref name='virConnectOpenAuth'/> @@ -5058,6 +5125,8 @@ <word name='pass'> <ref name='virConnSetErrorFunc'/> <ref name='virConnectDomainEventRegister'/> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectFindStoragePoolSources'/> <ref name='virDomainBlockPeek'/> <ref name='virDomainCreateLinux'/> @@ -5509,6 +5578,8 @@ <ref name='virNodeGetCellsFreeMemory'/> </word> <word name='returned'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectGetCapabilities'/> <ref name='virDomainBlockPeek'/> <ref name='virDomainBlockStats'/> @@ -5983,6 +6054,8 @@ <ref name='virDomainMigrate'/> </word> <word name='terminated'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectGetType'/> <ref name='virDomainGetXMLDesc'/> <ref name='virNetworkGetBridgeName'/> @@ -6214,6 +6287,8 @@ <ref name='virStorageVolRef'/> </word> <word name='unused'> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectFindStoragePoolSources'/> <ref name='virDomainBlockPeek'/> <ref name='virDomainCoreDump'/> @@ -6365,6 +6440,8 @@ <ref name='VIR_CPU_USABLE'/> <ref name='VIR_SECURITY_LABEL_BUFLEN'/> <ref name='_virVcpuInfo'/> + <ref name='virConnectDomainXMLFromNative'/> + <ref name='virConnectDomainXMLToNative'/> <ref name='virConnectGetMaxVcpus'/> <ref name='virConnectGetVersion'/> <ref name='virDomainGetAutostart'/> diff -r 803e91762b86 include/libvirt/libvirt.h --- a/include/libvirt/libvirt.h Wed May 13 09:34:19 2009 -0400 +++ b/include/libvirt/libvirt.h Wed May 13 09:47:20 2009 -0400 @@ -590,6 +590,16 @@ typedef enum { char * virDomainGetXMLDesc (virDomainPtr domain, int flags); + + +char * virConnectDomainXMLFromNative(virConnectPtr conn, + const char *nativeFormat, + const char *nativeConfig, + unsigned int flags); +char * virConnectDomainXMLToNative(virConnectPtr conn, + const char *nativeFormat, + const char *domainXml, + unsigned int flags); int virDomainBlockStats (virDomainPtr dom, const char *path, diff -r 803e91762b86 include/libvirt/libvirt.h.in --- a/include/libvirt/libvirt.h.in Wed May 13 09:34:19 2009 -0400 +++ b/include/libvirt/libvirt.h.in Wed May 13 09:34:22 2009 -0400 @@ -590,6 +590,16 @@ typedef enum { char * virDomainGetXMLDesc (virDomainPtr domain, int flags); + + +char * virConnectDomainXMLFromNative(virConnectPtr conn, + const char *nativeFormat, + const char *nativeConfig, + unsigned int flags); +char * virConnectDomainXMLToNative(virConnectPtr conn, + const char *nativeFormat, + const char *domainXml, + unsigned int flags); int virDomainBlockStats (virDomainPtr dom, const char *path, diff -r 803e91762b86 src/driver.h --- a/src/driver.h Wed May 13 09:34:19 2009 -0400 +++ b/src/driver.h Wed May 13 09:34:22 2009 -0400 @@ -152,6 +152,16 @@ typedef char * typedef char * (*virDrvDomainDumpXML) (virDomainPtr dom, int flags); +typedef char * + (*virDrvConnectDomainXMLFromNative) (virConnectPtr conn, + const char *nativeFormat, + const char *nativeConfig, + unsigned int flags); +typedef char * + (*virDrvConnectDomainXMLToNative) (virConnectPtr conn, + const char *nativeFormat, + const char *domainXml, + unsigned int flags); typedef int (*virDrvListDefinedDomains) (virConnectPtr conn, char **const names, @@ -381,6 +391,8 @@ struct _virDriver { virDrvDomainGetSecurityLabel domainGetSecurityLabel; virDrvNodeGetSecurityModel nodeGetSecurityModel; virDrvDomainDumpXML domainDumpXML; + virDrvConnectDomainXMLFromNative domainXMLFromNative; + virDrvConnectDomainXMLToNative domainXMLToNative; virDrvListDefinedDomains listDefinedDomains; virDrvNumOfDefinedDomains numOfDefinedDomains; virDrvDomainCreate domainCreate; diff -r 803e91762b86 src/libvirt.c --- a/src/libvirt.c Wed May 13 09:34:19 2009 -0400 +++ b/src/libvirt.c Wed May 13 09:34:22 2009 -0400 @@ -2648,6 +2648,111 @@ error: } /** + * virConnectDomainXMLFromNative: + * @conn: a connection object + * @nativeFormat: configuration format importing from + * @nativeConfig: the configuration data to import + * @flags: currently unused, pass 0 + * + * Reads native configuration data describing a domain, and + * generates libvirt domain XML. The format of the native + * data is hypervisor dependant. + * + * Returns a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. + * the caller must free() the returned value. + */ +char *virConnectDomainXMLFromNative(virConnectPtr conn, + const char *nativeFormat, + const char *nativeConfig, + unsigned int flags) +{ + DEBUG("conn=%p, format=%s config=%s flags=%u", conn, nativeFormat, nativeConfig, flags); + + virResetLastError(); + + if (!VIR_IS_CONNECT(conn)) { + virLibConnError(NULL, VIR_ERR_INVALID_CONN, __FUNCTION__); + return (NULL); + } + + if (nativeFormat == NULL || nativeConfig == NULL) { + virLibConnError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return (NULL); + } + + if (conn->driver->domainXMLFromNative) { + char *ret; + ret = conn->driver->domainXMLFromNative (conn, + nativeFormat, + nativeConfig, + flags); + if (!ret) + goto error; + return ret; + } + + virLibConnError (conn, VIR_ERR_NO_SUPPORT, __FUNCTION__); + +error: + /* Copy to connection error object for back compatability */ + virSetConnError(conn); + return NULL; +} + +/** + * virConnectDomainXMLToNative: + * @conn: a connection object + * @nativeFormat: configuration format exporting to + * @domainXml: the domain configuration to export + * @flags: currently unused, pass 0 + * + * Reads a domain XML configuration document, and generates + * generates a native configuration file describing the domain. + * The format of the native data is hypervisor dependant. + * + * Returns a 0 terminated UTF-8 encoded native config datafile, or NULL in case of error. + * the caller must free() the returned value. + */ +char *virConnectDomainXMLToNative(virConnectPtr conn, + const char *nativeFormat, + const char *domainXml, + unsigned int flags) +{ + DEBUG("conn=%p, format=%s xml=%s flags=%u", conn, nativeFormat, domainXml, flags); + + virResetLastError(); + + if (!VIR_IS_CONNECT(conn)) { + virLibConnError(NULL, VIR_ERR_INVALID_CONN, __FUNCTION__); + return (NULL); + } + + if (nativeFormat == NULL || domainXml == NULL) { + virLibConnError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return (NULL); + } + + if (conn->driver->domainXMLToNative) { + char *ret; + ret = conn->driver->domainXMLToNative(conn, + nativeFormat, + domainXml, + flags); + if (!ret) + goto error; + return ret; + } + + virLibConnError (conn, VIR_ERR_NO_SUPPORT, __FUNCTION__); + +error: + /* Copy to connection error object for back compatability */ + virSetConnError(conn); + return NULL; +} + + +/** * virDomainMigrate: * @domain: a domain object * @dconn: destination host (a connection object) diff -r 803e91762b86 src/libvirt_public.syms --- a/src/libvirt_public.syms Wed May 13 09:34:19 2009 -0400 +++ b/src/libvirt_public.syms Wed May 13 09:54:04 2009 -0400 @@ -264,9 +264,11 @@ LIBVIRT_0.6.3 { virNodeDeviceDestroy; } LIBVIRT_0.6.1; +LIBVIRT_0.6.4 { + global: + virStorageVolCreateXMLFrom; + virConnectDomainXMLFromNative; + virConnectDomainXMLToNative; +} LIBVIRT_0.6.3; + # .... define new API here using predicted next version number .... - -LIBVIRT_0.6.4 { - global: - virStorageVolCreateXMLFrom; -} LIBVIRT_0.6.3; diff -r 803e91762b86 src/lxc_driver.c --- a/src/lxc_driver.c Wed May 13 09:34:19 2009 -0400 +++ b/src/lxc_driver.c Wed May 13 09:34:22 2009 -0400 @@ -1457,6 +1457,8 @@ static virDriver lxcDriver = { NULL, /* domainGetSecurityLabel */ NULL, /* nodeGetSecurityModel */ lxcDomainDumpXML, /* domainDumpXML */ + NULL, /* domainXmlFromNative */ + NULL, /* domainXmlToNative */ lxcListDefinedDomains, /* listDefinedDomains */ lxcNumDefinedDomains, /* numOfDefinedDomains */ lxcDomainStart, /* domainCreate */ diff -r 803e91762b86 src/openvz_driver.c --- a/src/openvz_driver.c Wed May 13 09:34:19 2009 -0400 +++ b/src/openvz_driver.c Wed May 13 09:34:22 2009 -0400 @@ -1344,6 +1344,8 @@ static virDriver openvzDriver = { NULL, /* domainGetSecurityLabel */ NULL, /* nodeGetSecurityModel */ openvzDomainDumpXML, /* domainDumpXML */ + NULL, /* domainXmlFromNative */ + NULL, /* domainXmlToNative */ openvzListDefinedDomains, /* listDefinedDomains */ openvzNumDefinedDomains, /* numOfDefinedDomains */ openvzDomainCreate, /* domainCreate */ diff -r 803e91762b86 src/qemu_driver.c --- a/src/qemu_driver.c Wed May 13 09:34:19 2009 -0400 +++ b/src/qemu_driver.c Wed May 13 09:34:22 2009 -0400 @@ -5231,6 +5231,8 @@ static virDriver qemuDriver = { qemudDomainGetSecurityLabel, /* domainGetSecurityLabel */ qemudNodeGetSecurityModel, /* nodeGetSecurityModel */ qemudDomainDumpXML, /* domainDumpXML */ + NULL, /* domainXmlFromNative */ + NULL, /* domainXmlToNative */ qemudListDefinedDomains, /* listDefinedDomains */ qemudNumDefinedDomains, /* numOfDefinedDomains */ qemudDomainStart, /* domainCreate */ diff -r 803e91762b86 src/remote_internal.c --- a/src/remote_internal.c Wed May 13 09:34:19 2009 -0400 +++ b/src/remote_internal.c Wed May 13 09:53:16 2009 -0400 @@ -6968,6 +6968,8 @@ static virDriver driver = { remoteDomainGetSecurityLabel, /* domainGetSecurityLabel */ remoteNodeGetSecurityModel, /* nodeGetSecurityModel */ remoteDomainDumpXML, /* domainDumpXML */ + NULL, /* domainXmlFromNative */ + NULL, /* domainXmlToNative */ remoteListDefinedDomains, /* listDefinedDomains */ remoteNumOfDefinedDomains, /* numOfDefinedDomains */ remoteDomainCreate, /* domainCreate */ diff -r 803e91762b86 src/test.c --- a/src/test.c Wed May 13 09:34:19 2009 -0400 +++ b/src/test.c Wed May 13 09:34:22 2009 -0400 @@ -3594,6 +3594,8 @@ static virDriver testDriver = { NULL, /* domainGetSecurityLabel */ NULL, /* nodeGetSecurityModel */ testDomainDumpXML, /* domainDumpXML */ + NULL, /* domainXmlFromNative */ + NULL, /* domainXmlToNative */ testListDefinedDomains, /* listDefinedDomains */ testNumOfDefinedDomains, /* numOfDefinedDomains */ testDomainCreate, /* domainCreate */ diff -r 803e91762b86 src/uml_driver.c --- a/src/uml_driver.c Wed May 13 09:34:19 2009 -0400 +++ b/src/uml_driver.c Wed May 13 09:34:22 2009 -0400 @@ -1854,6 +1854,8 @@ static virDriver umlDriver = { NULL, /* domainGetSecurityLabel */ NULL, /* nodeGetSecurityModel */ umlDomainDumpXML, /* domainDumpXML */ + NULL, /* domainXmlFromNative */ + NULL, /* domainXmlToNative */ umlListDefinedDomains, /* listDefinedDomains */ umlNumDefinedDomains, /* numOfDefinedDomains */ umlDomainStart, /* domainCreate */ diff -r 803e91762b86 src/virsh.c --- a/src/virsh.c Wed May 13 09:34:19 2009 -0400 +++ b/src/virsh.c Wed May 13 09:53:16 2009 -0400 @@ -2206,6 +2206,98 @@ cmdDumpXML(vshControl *ctl, const vshCmd } virDomainFree(dom); + return ret; +} + +/* + * "domxml-from-native" command + */ +static const vshCmdInfo info_domxmlfromnative[] = { + {"help", gettext_noop("Import native config as domain XML")}, + {"desc", gettext_noop("Import native guest configuration format to domain XML format.")}, + {NULL, NULL} +}; + +static const vshCmdOptDef opts_domxmlfromnative[] = { + {"format", VSH_OT_DATA, VSH_OFLAG_REQ, gettext_noop("source config data format")}, + {"config", VSH_OT_DATA, VSH_OFLAG_REQ, gettext_noop("config data file to import from")}, + {NULL, 0, 0, NULL} +}; + +static int +cmdDomXMLFromNative(vshControl *ctl, const vshCmd *cmd) +{ + int ret = TRUE; + char *format; + char *configFile; + char *configData; + char *xmlData; + int flags = 0; + + if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) + return FALSE; + + format = vshCommandOptString(cmd, "format", NULL); + configFile = vshCommandOptString(cmd, "config", NULL); + + if (virFileReadAll(configFile, 1024*1024, &configData) < 0) { + return FALSE; + } + + xmlData = virConnectDomainXMLFromNative(ctl->conn, format, configData, flags); + if (xmlData != NULL) { + printf("%s", xmlData); + free(xmlData); + } else { + ret = FALSE; + } + + return ret; +} + +/* + * "domxml-to-native" command + */ +static const vshCmdInfo info_domxmltonative[] = { + {"help", gettext_noop("Export domain XML as native config")}, + {"desc", gettext_noop("Export domain XML config to a native guest configuration format.")}, + {NULL, NULL} +}; + +static const vshCmdOptDef opts_domxmltonative[] = { + {"format", VSH_OT_DATA, VSH_OFLAG_REQ, gettext_noop("target config data type format")}, + {"xml", VSH_OT_DATA, VSH_OFLAG_REQ, gettext_noop("xml data file to export from")}, + {NULL, 0, 0, NULL} +}; + +static int +cmdDomXMLToNative(vshControl *ctl, const vshCmd *cmd) +{ + int ret = TRUE; + char *format; + char *xmlFile; + char *configData; + char *xmlData; + int flags = 0; + + if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) + return FALSE; + + format = vshCommandOptString(cmd, "format", NULL); + xmlFile = vshCommandOptString(cmd, "xml", NULL); + + if (virFileReadAll(xmlFile, 1024*1024, &xmlData) < 0) { + return FALSE; + } + + configData = virConnectDomainXMLToNative(ctl->conn, format, xmlData, flags); + if (configData != NULL) { + printf("%s", configData); + free(configData); + } else { + ret = FALSE; + } + return ret; } @@ -6037,6 +6129,8 @@ static const vshCmdDef commands[] = { {"domstate", cmdDomstate, opts_domstate, info_domstate}, {"domblkstat", cmdDomblkstat, opts_domblkstat, info_domblkstat}, {"domifstat", cmdDomIfstat, opts_domifstat, info_domifstat}, + {"domxml-from-native", cmdDomXMLFromNative, opts_domxmlfromnative, info_domxmlfromnative}, + {"domxml-to-native", cmdDomXMLToNative, opts_domxmltonative, info_domxmltonative}, {"dumpxml", cmdDumpXML, opts_dumpxml, info_dumpxml}, {"edit", cmdEdit, opts_edit, info_edit}, {"find-storage-pool-sources", cmdPoolDiscoverSources, diff -r 803e91762b86 src/xen_unified.c --- a/src/xen_unified.c Wed May 13 09:34:19 2009 -0400 +++ b/src/xen_unified.c Wed May 13 09:34:22 2009 -0400 @@ -1580,6 +1580,8 @@ static virDriver xenUnifiedDriver = { NULL, /* domainGetSecurityLabel */ NULL, /* nodeGetSecurityModel */ xenUnifiedDomainDumpXML, /* domainDumpXML */ + NULL, /* domainXmlFromNative */ + NULL, /* domainXmlToNative */ xenUnifiedListDefinedDomains, /* listDefinedDomains */ xenUnifiedNumOfDefinedDomains, /* numOfDefinedDomains */ xenUnifiedDomainCreate, /* domainCreate */ -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
On Wed, May 13, 2009 at 03:35:26PM +0100, Daniel P. Berrange wrote:
This provides the 2 public APIs needed for conversion of domain XML to/from native configuration formats. It also hooks up the internal driver infrastructure, and binds to virsh
[...] this seems to have changed massively the generated HTML files, should probably be skipped on commit and double checked manually.
diff -r 803e91762b86 docs/libvirt-api.xml --- a/docs/libvirt-api.xml Wed May 13 09:34:19 2009 -0400 +++ b/docs/libvirt-api.xml Wed May 13 09:41:37 2009 -0400
okay on that one but again it's regenerated let's avoid this on the patch
diff -r 803e91762b86 docs/libvirt-refs.xml
idem
diff -r 803e91762b86 include/libvirt/libvirt.h --- a/include/libvirt/libvirt.h Wed May 13 09:34:19 2009 -0400 +++ b/include/libvirt/libvirt.h Wed May 13 09:47:20 2009 -0400 @@ -590,6 +590,16 @@ typedef enum {
char * virDomainGetXMLDesc (virDomainPtr domain, int flags); + + +char * virConnectDomainXMLFromNative(virConnectPtr conn, + const char *nativeFormat, + const char *nativeConfig, + unsigned int flags); +char * virConnectDomainXMLToNative(virConnectPtr conn, + const char *nativeFormat, + const char *domainXml, + unsigned int flags);
okay, looks fine ! This works purely at the driver level and doesn't involve a specific domain. [...]
+/* + * "domxml-from-native" command + */ +static const vshCmdInfo info_domxmlfromnative[] = { + {"help", gettext_noop("Import native config as domain XML")}, + {"desc", gettext_noop("Import native guest configuration format to domain XML format.")}, + {NULL, NULL} +};
I wouldn't really say it's an import, at best it's an export to a new format, import may be misunderstood as possibly defining a resulting domain.
+/* + * "domxml-to-native" command + */ +static const vshCmdInfo info_domxmltonative[] = { + {"help", gettext_noop("Export domain XML as native config")}, + {"desc", gettext_noop("Export domain XML config to a native guest configuration format.")}, + {NULL, NULL} +};
Hum, maybe we should just use "Convert" instead of import or export. Okay, looks fine to me ! Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel@veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/
On Wed, May 13, 2009 at 05:24:33PM +0200, Daniel Veillard wrote:
On Wed, May 13, 2009 at 03:35:26PM +0100, Daniel P. Berrange wrote:
This provides the 2 public APIs needed for conversion of domain XML to/from native configuration formats. It also hooks up the internal driver infrastructure, and binds to virsh
[...]
+/* + * "domxml-from-native" command + */ +static const vshCmdInfo info_domxmlfromnative[] = { + {"help", gettext_noop("Import native config as domain XML")}, + {"desc", gettext_noop("Import native guest configuration format to domain XML format.")}, + {NULL, NULL} +};
I wouldn't really say it's an import, at best it's an export to a new format, import may be misunderstood as possibly defining a resulting domain.
+/* + * "domxml-to-native" command + */ +static const vshCmdInfo info_domxmltonative[] = { + {"help", gettext_noop("Export domain XML as native config")}, + {"desc", gettext_noop("Export domain XML config to a native guest configuration format.")}, + {NULL, NULL} +};
Hum, maybe we should just use "Convert" instead of import or export.
This is left over from a earlier version. I was calling the APIs and virsh commands domxml-import and domxml-export, but i decided this was confusing, to changed but forgot the help text. Convert is a better word for this Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
This patch wires up the new APIs to the remote driver and libvirtd daemon. qemud/remote.c | 41 ++++++++++++++++++++++ qemud/remote_dispatch_args.h | 2 + qemud/remote_dispatch_prototypes.h | 14 +++++++ qemud/remote_dispatch_ret.h | 2 + qemud/remote_dispatch_table.h | 10 +++++ qemud/remote_protocol.c | 44 ++++++++++++++++++++++++ qemud/remote_protocol.h | 34 +++++++++++++++++++ qemud/remote_protocol.x | 27 ++++++++++++++- src/remote_internal.c | 66 +++++++++++++++++++++++++++++++++++-- src/virsh.c | 4 +- 10 files changed, 239 insertions(+), 5 deletions(-) Daniel diff -r 4f46dfd24fdb qemud/remote.c --- a/qemud/remote.c Wed May 13 09:54:09 2009 -0400 +++ b/qemud/remote.c Wed May 13 10:00:22 2009 -0400 @@ -1236,6 +1236,47 @@ remoteDispatchDomainDumpXml (struct qemu } static int +remoteDispatchDomainXmlFromNative (struct qemud_server *server ATTRIBUTE_UNUSED, + struct qemud_client *client ATTRIBUTE_UNUSED, + virConnectPtr conn, + remote_error *rerr, + remote_domain_xml_from_native_args *args, + remote_domain_xml_from_native_ret *ret) +{ + /* remoteDispatchClientRequest will free this. */ + ret->domainXml = virConnectDomainXMLFromNative (conn, + args->nativeFormat, + args->nativeConfig, + args->flags); + if (!ret->domainXml) { + remoteDispatchConnError(rerr, conn); + return -1; + } + return 0; +} + +static int +remoteDispatchDomainXmlToNative (struct qemud_server *server ATTRIBUTE_UNUSED, + struct qemud_client *client ATTRIBUTE_UNUSED, + virConnectPtr conn, + remote_error *rerr, + remote_domain_xml_to_native_args *args, + remote_domain_xml_to_native_ret *ret) +{ + /* remoteDispatchClientRequest will free this. */ + ret->nativeConfig = virConnectDomainXMLToNative (conn, + args->nativeFormat, + args->domainXml, + args->flags); + if (!ret->nativeConfig) { + remoteDispatchConnError(rerr, conn); + return -1; + } + return 0; +} + + +static int remoteDispatchDomainGetAutostart (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, diff -r 4f46dfd24fdb qemud/remote_dispatch_args.h --- a/qemud/remote_dispatch_args.h Wed May 13 09:54:09 2009 -0400 +++ b/qemud/remote_dispatch_args.h Wed May 13 10:02:06 2009 -0400 @@ -106,3 +106,5 @@ remote_node_device_create_xml_args val_remote_node_device_create_xml_args; remote_node_device_destroy_args val_remote_node_device_destroy_args; remote_storage_vol_create_xml_from_args val_remote_storage_vol_create_xml_from_args; + remote_domain_xml_from_native_args val_remote_domain_xml_from_native_args; + remote_domain_xml_to_native_args val_remote_domain_xml_to_native_args; diff -r 4f46dfd24fdb qemud/remote_dispatch_prototypes.h --- a/qemud/remote_dispatch_prototypes.h Wed May 13 09:54:09 2009 -0400 +++ b/qemud/remote_dispatch_prototypes.h Wed May 13 10:02:06 2009 -0400 @@ -359,6 +359,20 @@ static int remoteDispatchDomainUndefine( remote_error *err, remote_domain_undefine_args *args, void *ret); +static int remoteDispatchDomainXmlFromNative( + struct qemud_server *server, + struct qemud_client *client, + virConnectPtr conn, + remote_error *err, + remote_domain_xml_from_native_args *args, + remote_domain_xml_from_native_ret *ret); +static int remoteDispatchDomainXmlToNative( + struct qemud_server *server, + struct qemud_client *client, + virConnectPtr conn, + remote_error *err, + remote_domain_xml_to_native_args *args, + remote_domain_xml_to_native_ret *ret); static int remoteDispatchFindStoragePoolSources( struct qemud_server *server, struct qemud_client *client, diff -r 4f46dfd24fdb qemud/remote_dispatch_ret.h --- a/qemud/remote_dispatch_ret.h Wed May 13 09:54:09 2009 -0400 +++ b/qemud/remote_dispatch_ret.h Wed May 13 10:02:06 2009 -0400 @@ -90,3 +90,5 @@ remote_node_get_security_model_ret val_remote_node_get_security_model_ret; remote_node_device_create_xml_ret val_remote_node_device_create_xml_ret; remote_storage_vol_create_xml_from_ret val_remote_storage_vol_create_xml_from_ret; + remote_domain_xml_from_native_ret val_remote_domain_xml_from_native_ret; + remote_domain_xml_to_native_ret val_remote_domain_xml_to_native_ret; diff -r 4f46dfd24fdb qemud/remote_dispatch_table.h --- a/qemud/remote_dispatch_table.h Wed May 13 09:54:09 2009 -0400 +++ b/qemud/remote_dispatch_table.h Wed May 13 10:02:06 2009 -0400 @@ -632,3 +632,13 @@ .args_filter = (xdrproc_t) xdr_remote_storage_vol_create_xml_from_args, .ret_filter = (xdrproc_t) xdr_remote_storage_vol_create_xml_from_ret, }, +{ /* DomainXmlFromNative => 126 */ + .fn = (dispatch_fn) remoteDispatchDomainXmlFromNative, + .args_filter = (xdrproc_t) xdr_remote_domain_xml_from_native_args, + .ret_filter = (xdrproc_t) xdr_remote_domain_xml_from_native_ret, +}, +{ /* DomainXmlToNative => 127 */ + .fn = (dispatch_fn) remoteDispatchDomainXmlToNative, + .args_filter = (xdrproc_t) xdr_remote_domain_xml_to_native_args, + .ret_filter = (xdrproc_t) xdr_remote_domain_xml_to_native_ret, +}, diff -r 4f46dfd24fdb qemud/remote_protocol.c --- a/qemud/remote_protocol.c Wed May 13 09:54:09 2009 -0400 +++ b/qemud/remote_protocol.c Wed May 13 09:57:11 2009 -0400 @@ -2314,6 +2314,50 @@ xdr_remote_domain_event_ret (XDR *xdrs, } bool_t +xdr_remote_domain_xml_from_native_args (XDR *xdrs, remote_domain_xml_from_native_args *objp) +{ + + if (!xdr_remote_nonnull_string (xdrs, &objp->nativeFormat)) + return FALSE; + if (!xdr_remote_nonnull_string (xdrs, &objp->nativeConfig)) + return FALSE; + if (!xdr_u_int (xdrs, &objp->flags)) + return FALSE; + return TRUE; +} + +bool_t +xdr_remote_domain_xml_from_native_ret (XDR *xdrs, remote_domain_xml_from_native_ret *objp) +{ + + if (!xdr_remote_nonnull_string (xdrs, &objp->domainXml)) + return FALSE; + return TRUE; +} + +bool_t +xdr_remote_domain_xml_to_native_args (XDR *xdrs, remote_domain_xml_to_native_args *objp) +{ + + if (!xdr_remote_nonnull_string (xdrs, &objp->nativeFormat)) + return FALSE; + if (!xdr_remote_nonnull_string (xdrs, &objp->domainXml)) + return FALSE; + if (!xdr_u_int (xdrs, &objp->flags)) + return FALSE; + return TRUE; +} + +bool_t +xdr_remote_domain_xml_to_native_ret (XDR *xdrs, remote_domain_xml_to_native_ret *objp) +{ + + if (!xdr_remote_nonnull_string (xdrs, &objp->nativeConfig)) + return FALSE; + return TRUE; +} + +bool_t xdr_remote_procedure (XDR *xdrs, remote_procedure *objp) { diff -r 4f46dfd24fdb qemud/remote_protocol.h --- a/qemud/remote_protocol.h Wed May 13 09:54:09 2009 -0400 +++ b/qemud/remote_protocol.h Wed May 13 09:57:11 2009 -0400 @@ -1300,6 +1300,30 @@ struct remote_domain_event_ret { int detail; }; typedef struct remote_domain_event_ret remote_domain_event_ret; + +struct remote_domain_xml_from_native_args { + remote_nonnull_string nativeFormat; + remote_nonnull_string nativeConfig; + u_int flags; +}; +typedef struct remote_domain_xml_from_native_args remote_domain_xml_from_native_args; + +struct remote_domain_xml_from_native_ret { + remote_nonnull_string domainXml; +}; +typedef struct remote_domain_xml_from_native_ret remote_domain_xml_from_native_ret; + +struct remote_domain_xml_to_native_args { + remote_nonnull_string nativeFormat; + remote_nonnull_string domainXml; + u_int flags; +}; +typedef struct remote_domain_xml_to_native_args remote_domain_xml_to_native_args; + +struct remote_domain_xml_to_native_ret { + remote_nonnull_string nativeConfig; +}; +typedef struct remote_domain_xml_to_native_ret remote_domain_xml_to_native_ret; #define REMOTE_PROGRAM 0x20008086 #define REMOTE_PROTOCOL_VERSION 1 @@ -1429,6 +1453,8 @@ enum remote_procedure { REMOTE_PROC_NODE_DEVICE_CREATE_XML = 123, REMOTE_PROC_NODE_DEVICE_DESTROY = 124, REMOTE_PROC_STORAGE_VOL_CREATE_XML_FROM = 125, + REMOTE_PROC_DOMAIN_XML_FROM_NATIVE = 125, + REMOTE_PROC_DOMAIN_XML_TO_NATIVE = 126, }; typedef enum remote_procedure remote_procedure; @@ -1669,6 +1695,10 @@ extern bool_t xdr_remote_domain_events_ extern bool_t xdr_remote_domain_events_register_ret (XDR *, remote_domain_events_register_ret*); extern bool_t xdr_remote_domain_events_deregister_ret (XDR *, remote_domain_events_deregister_ret*); extern bool_t xdr_remote_domain_event_ret (XDR *, remote_domain_event_ret*); +extern bool_t xdr_remote_domain_xml_from_native_args (XDR *, remote_domain_xml_from_native_args*); +extern bool_t xdr_remote_domain_xml_from_native_ret (XDR *, remote_domain_xml_from_native_ret*); +extern bool_t xdr_remote_domain_xml_to_native_args (XDR *, remote_domain_xml_to_native_args*); +extern bool_t xdr_remote_domain_xml_to_native_ret (XDR *, remote_domain_xml_to_native_ret*); extern bool_t xdr_remote_procedure (XDR *, remote_procedure*); extern bool_t xdr_remote_message_direction (XDR *, remote_message_direction*); extern bool_t xdr_remote_message_status (XDR *, remote_message_status*); @@ -1885,6 +1915,10 @@ extern bool_t xdr_remote_domain_events_r extern bool_t xdr_remote_domain_events_register_ret (); extern bool_t xdr_remote_domain_events_deregister_ret (); extern bool_t xdr_remote_domain_event_ret (); +extern bool_t xdr_remote_domain_xml_from_native_args (); +extern bool_t xdr_remote_domain_xml_from_native_ret (); +extern bool_t xdr_remote_domain_xml_to_native_args (); +extern bool_t xdr_remote_domain_xml_to_native_ret (); extern bool_t xdr_remote_procedure (); extern bool_t xdr_remote_message_direction (); extern bool_t xdr_remote_message_status (); diff -r 4f46dfd24fdb qemud/remote_protocol.x --- a/qemud/remote_protocol.x Wed May 13 09:54:09 2009 -0400 +++ b/qemud/remote_protocol.x Wed May 13 10:02:03 2009 -0400 @@ -1154,6 +1154,29 @@ struct remote_domain_event_ret { int detail; }; + +struct remote_domain_xml_from_native_args { + remote_nonnull_string nativeFormat; + remote_nonnull_string nativeConfig; + unsigned flags; +}; + +struct remote_domain_xml_from_native_ret { + remote_nonnull_string domainXml; +}; + + +struct remote_domain_xml_to_native_args { + remote_nonnull_string nativeFormat; + remote_nonnull_string domainXml; + unsigned flags; +}; + +struct remote_domain_xml_to_native_ret { + remote_nonnull_string nativeConfig; +}; + + /*----- Protocol. -----*/ /* Define the program number, protocol version and procedure numbers here. */ @@ -1299,7 +1322,9 @@ enum remote_procedure { REMOTE_PROC_NODE_DEVICE_CREATE_XML = 123, REMOTE_PROC_NODE_DEVICE_DESTROY = 124, - REMOTE_PROC_STORAGE_VOL_CREATE_XML_FROM = 125 + REMOTE_PROC_STORAGE_VOL_CREATE_XML_FROM = 125, + REMOTE_PROC_DOMAIN_XML_FROM_NATIVE = 126, + REMOTE_PROC_DOMAIN_XML_TO_NATIVE = 127 }; /* Custom RPC structure. */ diff -r 4f46dfd24fdb src/remote_internal.c --- a/src/remote_internal.c Wed May 13 09:54:09 2009 -0400 +++ b/src/remote_internal.c Wed May 13 09:54:10 2009 -0400 @@ -2395,6 +2395,68 @@ remoteDomainDumpXML (virDomainPtr domain /* Caller frees. */ rv = ret.xml; + +done: + remoteDriverUnlock(priv); + return rv; +} + +static char * +remoteDomainXMLFromNative (virConnectPtr conn, + const char *format, + const char *config, + unsigned int flags) +{ + char *rv = NULL; + remote_domain_xml_from_native_args args; + remote_domain_xml_from_native_ret ret; + struct private_data *priv = conn->privateData; + + remoteDriverLock(priv); + + args.nativeFormat = (char *)format; + args.nativeConfig = (char *)config; + args.flags = flags; + + memset (&ret, 0, sizeof ret); + if (call (conn, priv, 0, REMOTE_PROC_DOMAIN_XML_FROM_NATIVE, + (xdrproc_t) xdr_remote_domain_xml_from_native_args, (char *) &args, + (xdrproc_t) xdr_remote_domain_xml_from_native_ret, (char *) &ret) == -1) + goto done; + + /* Caller frees. */ + rv = ret.domainXml; + +done: + remoteDriverUnlock(priv); + return rv; +} + +static char * +remoteDomainXMLToNative (virConnectPtr conn, + const char *format, + const char *xml, + unsigned int flags) +{ + char *rv = NULL; + remote_domain_xml_to_native_args args; + remote_domain_xml_to_native_ret ret; + struct private_data *priv = conn->privateData; + + remoteDriverLock(priv); + + args.nativeFormat = (char *)format; + args.domainXml = (char *)xml; + args.flags = flags; + + memset (&ret, 0, sizeof ret); + if (call (conn, priv, 0, REMOTE_PROC_DOMAIN_XML_TO_NATIVE, + (xdrproc_t) xdr_remote_domain_xml_to_native_args, (char *) &args, + (xdrproc_t) xdr_remote_domain_xml_to_native_ret, (char *) &ret) == -1) + goto done; + + /* Caller frees. */ + rv = ret.nativeConfig; done: remoteDriverUnlock(priv); @@ -6968,8 +7030,8 @@ static virDriver driver = { remoteDomainGetSecurityLabel, /* domainGetSecurityLabel */ remoteNodeGetSecurityModel, /* nodeGetSecurityModel */ remoteDomainDumpXML, /* domainDumpXML */ - NULL, /* domainXmlFromNative */ - NULL, /* domainXmlToNative */ + remoteDomainXMLFromNative, /* domainXMLFromNative */ + remoteDomainXMLToNative, /* domainXMLToNative */ remoteListDefinedDomains, /* listDefinedDomains */ remoteNumOfDefinedDomains, /* numOfDefinedDomains */ remoteDomainCreate, /* domainCreate */ diff -r 4f46dfd24fdb src/virsh.c --- a/src/virsh.c Wed May 13 09:54:09 2009 -0400 +++ b/src/virsh.c Wed May 13 09:54:10 2009 -0400 @@ -4189,8 +4189,8 @@ makeCloneXML(char *origxml, char *newnam makeCloneXML(char *origxml, char *newname) { xmlDocPtr doc; - xmlXPathContextPtr ctxt; - xmlXPathObjectPtr obj; + xmlXPathContextPtr ctxt = NULL; + xmlXPathObjectPtr obj = NULL; xmlChar *newxml = NULL; int size; -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
On Wed, May 13, 2009 at 03:36:22PM +0100, Daniel P. Berrange wrote:
This patch wires up the new APIs to the remote driver and libvirtd daemon. [...] --- a/qemud/remote_protocol.h Wed May 13 09:54:09 2009 -0400 +++ b/qemud/remote_protocol.h Wed May 13 09:57:11 2009 -0400 [...] @@ -1429,6 +1453,8 @@ enum remote_procedure { REMOTE_PROC_NODE_DEVICE_CREATE_XML = 123, REMOTE_PROC_NODE_DEVICE_DESTROY = 124, REMOTE_PROC_STORAGE_VOL_CREATE_XML_FROM = 125, + REMOTE_PROC_DOMAIN_XML_FROM_NATIVE = 125, + REMOTE_PROC_DOMAIN_XML_TO_NATIVE = 126, }; typedef enum remote_procedure remote_procedure;
Hum, that looks like an enum value clash here !
--- a/qemud/remote_protocol.x Wed May 13 09:54:09 2009 -0400 +++ b/qemud/remote_protocol.x Wed May 13 10:02:03 2009 -0400 [...] @@ -1299,7 +1322,9 @@ enum remote_procedure { REMOTE_PROC_NODE_DEVICE_CREATE_XML = 123, REMOTE_PROC_NODE_DEVICE_DESTROY = 124,
- REMOTE_PROC_STORAGE_VOL_CREATE_XML_FROM = 125 + REMOTE_PROC_STORAGE_VOL_CREATE_XML_FROM = 125, + REMOTE_PROC_DOMAIN_XML_FROM_NATIVE = 126, + REMOTE_PROC_DOMAIN_XML_TO_NATIVE = 127 };
But here it looks fine, there is something to double-check ! Otherwise just boring stuff and with char */int args I don't think there is much risks, ACK once the enum is sorted out.
diff -r 4f46dfd24fdb src/virsh.c --- a/src/virsh.c Wed May 13 09:54:09 2009 -0400 +++ b/src/virsh.c Wed May 13 09:54:10 2009 -0400 @@ -4189,8 +4189,8 @@ makeCloneXML(char *origxml, char *newnam makeCloneXML(char *origxml, char *newname) {
xmlDocPtr doc; - xmlXPathContextPtr ctxt; - xmlXPathObjectPtr obj; + xmlXPathContextPtr ctxt = NULL; + xmlXPathObjectPtr obj = NULL; xmlChar *newxml = NULL; int size;
Sounds a completely different patch to push independantly, and yes that's needed ACK ! for an immediate push Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel@veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/
On Wed, May 13, 2009 at 05:29:44PM +0200, Daniel Veillard wrote:
On Wed, May 13, 2009 at 03:36:22PM +0100, Daniel P. Berrange wrote:
This patch wires up the new APIs to the remote driver and libvirtd daemon. [...] --- a/qemud/remote_protocol.h Wed May 13 09:54:09 2009 -0400 +++ b/qemud/remote_protocol.h Wed May 13 09:57:11 2009 -0400 [...] @@ -1429,6 +1453,8 @@ enum remote_procedure { REMOTE_PROC_NODE_DEVICE_CREATE_XML = 123, REMOTE_PROC_NODE_DEVICE_DESTROY = 124, REMOTE_PROC_STORAGE_VOL_CREATE_XML_FROM = 125, + REMOTE_PROC_DOMAIN_XML_FROM_NATIVE = 125, + REMOTE_PROC_DOMAIN_XML_TO_NATIVE = 126, }; typedef enum remote_procedure remote_procedure;
Hum, that looks like an enum value clash here !
Yes I forgot re-run 'make rpcgen' after resolving the clash with Cole's recently committed change.
--- a/qemud/remote_protocol.x Wed May 13 09:54:09 2009 -0400 +++ b/qemud/remote_protocol.x Wed May 13 10:02:03 2009 -0400 [...] @@ -1299,7 +1322,9 @@ enum remote_procedure { REMOTE_PROC_NODE_DEVICE_CREATE_XML = 123, REMOTE_PROC_NODE_DEVICE_DESTROY = 124,
- REMOTE_PROC_STORAGE_VOL_CREATE_XML_FROM = 125 + REMOTE_PROC_STORAGE_VOL_CREATE_XML_FROM = 125, + REMOTE_PROC_DOMAIN_XML_FROM_NATIVE = 126, + REMOTE_PROC_DOMAIN_XML_TO_NATIVE = 127 };
But here it looks fine, there is something to double-check !
Otherwise just boring stuff and with char */int args I don't think there is much risks, ACK once the enum is sorted out.
diff -r 4f46dfd24fdb src/virsh.c --- a/src/virsh.c Wed May 13 09:54:09 2009 -0400 +++ b/src/virsh.c Wed May 13 09:54:10 2009 -0400 @@ -4189,8 +4189,8 @@ makeCloneXML(char *origxml, char *newnam makeCloneXML(char *origxml, char *newname) {
xmlDocPtr doc; - xmlXPathContextPtr ctxt; - xmlXPathObjectPtr obj; + xmlXPathContextPtr ctxt = NULL; + xmlXPathObjectPtr obj = NULL; xmlChar *newxml = NULL; int size;
Sounds a completely different patch to push independantly, and yes that's needed ACK ! for an immediate push
Yes, Cole was already looking at this. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
Daniel P. Berrange wrote:
On Wed, May 13, 2009 at 05:29:44PM +0200, Daniel Veillard wrote:
<snip>
diff -r 4f46dfd24fdb src/virsh.c --- a/src/virsh.c Wed May 13 09:54:09 2009 -0400 +++ b/src/virsh.c Wed May 13 09:54:10 2009 -0400 @@ -4189,8 +4189,8 @@ makeCloneXML(char *origxml, char *newnam makeCloneXML(char *origxml, char *newname) {
xmlDocPtr doc; - xmlXPathContextPtr ctxt; - xmlXPathObjectPtr obj; + xmlXPathContextPtr ctxt = NULL; + xmlXPathObjectPtr obj = NULL; xmlChar *newxml = NULL; int size; Sounds a completely different patch to push independantly, and yes that's needed ACK ! for an immediate push
Yes, Cole was already looking at this.
I just pushed the above change. Thanks, Cole
This patches provides an implenmentation of the new APIs for Xen which can convert to/from both XM config format (/etc/xen files), and the SEXPR format used by XenD. The former is most useful to end users, but it was easy to add the latter too, so I did. It can be a useful debugging aid sometimes. For QEMU, it implemnets export of domain XML into the QEMU argv format. qemu_conf.c | 25 +++++------- qemu_conf.h | 3 + qemu_driver.c | 119 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++- xen_unified.c | 95 +++++++++++++++++++++++++++++++++++++++++++++- xen_unified.h | 3 + 5 files changed, 228 insertions(+), 17 deletions(-) Daniel diff -r f55fa9b69d85 src/qemu_conf.c --- a/src/qemu_conf.c Wed May 13 13:13:18 2009 +0100 +++ b/src/qemu_conf.c Wed May 13 13:16:50 2009 +0100 @@ -1248,21 +1248,18 @@ int qemudBuildCommandLine(virConnectPtr case VIR_DOMAIN_NET_TYPE_ETHERNET: { - char arg[PATH_MAX]; - if (net->ifname) { - if (snprintf(arg, PATH_MAX-1, "tap,ifname=%s,script=%s,vlan=%d", - net->ifname, - net->data.ethernet.script, - vlan) >= (PATH_MAX-1)) - goto error; - } else { - if (snprintf(arg, PATH_MAX-1, "tap,script=%s,vlan=%d", - net->data.ethernet.script, - vlan) >= (PATH_MAX-1)) - goto error; - } + virBuffer buf = VIR_BUFFER_INITIALIZER; - ADD_ARG_LIT(arg); + virBufferAddLit(&buf, "tap"); + if (net->ifname) + virBufferVSprintf(&buf, ",ifname=%s", net->ifname); + if (net->data.ethernet.script) + virBufferVSprintf(&buf, ",script=%s", net->data.ethernet.script); + virBufferVSprintf(&buf, ",vlan=%d", vlan); + if (virBufferError(&buf)) + goto error; + + ADD_ARG(virBufferContentAndReset(&buf)); } break; diff -r f55fa9b69d85 src/qemu_conf.h --- a/src/qemu_conf.h Wed May 13 13:13:18 2009 +0100 +++ b/src/qemu_conf.h Wed May 13 13:16:50 2009 +0100 @@ -106,6 +106,9 @@ struct _qemudDomainStatus { #define QEMUD_MIGRATION_FIRST_PORT 49152 #define QEMUD_MIGRATION_NUM_PORTS 64 +/* Config type for XML import/export conversions */ +#define QEMU_CONFIG_FORMAT_ARGV "qemu-argv" + #define qemudReportError(conn, dom, net, code, fmt...) \ virReportErrorHelper(conn, VIR_FROM_QEMU, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) diff -r f55fa9b69d85 src/qemu_driver.c --- a/src/qemu_driver.c Wed May 13 13:13:18 2009 +0100 +++ b/src/qemu_driver.c Wed May 13 13:16:50 2009 +0100 @@ -3423,6 +3423,123 @@ cleanup: } +static char *qemuDomainXMLToNative(virConnectPtr conn, + const char *format, + const char *xmlData, + unsigned int flags ATTRIBUTE_UNUSED) { + struct qemud_driver *driver = conn->privateData; + virDomainDefPtr def = NULL; + const char *emulator; + unsigned int qemuCmdFlags; + struct stat sb; + const char **retargv = NULL; + const char **retenv = NULL; + const char **tmp; + virBuffer buf = VIR_BUFFER_INITIALIZER; + char *ret = NULL; + int i; + + if (STRNEQ(format, QEMU_CONFIG_FORMAT_ARGV)) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INVALID_ARG, + _("unsupported config type %s"), format); + goto cleanup; + } + + def = virDomainDefParseString(conn, driver->caps, xmlData, 0); + if (!def) + goto cleanup; + + /* Since we're just exporting args, we can't do bridge/network + * setups, since libvirt will normally create TAP devices + * directly. We convert those configs into generic 'ethernet' + * config and assume the user has suitable 'ifup-qemu' scripts + */ + for (i = 0 ; i < def->nnets ; i++) { + virDomainNetDefPtr net = def->nets[i]; + if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) { + VIR_FREE(net->data.network.name); + net->type = VIR_DOMAIN_NET_TYPE_ETHERNET; + net->data.ethernet.dev = NULL; + net->data.ethernet.script = NULL; + net->data.ethernet.ipaddr = NULL; + } else if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) { + net->type = VIR_DOMAIN_NET_TYPE_ETHERNET; + /* Rely on fact that the 'ethernet' and 'bridge' + * union structs have members in same place */ + } + } + for (i = 0 ; i < def->ngraphics ; i++) { + if (def->graphics[i]->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC && + def->graphics[i]->data.vnc.autoport) + def->graphics[i]->data.vnc.port = 5900; + } + emulator = def->emulator; + if (!emulator) + emulator = virDomainDefDefaultEmulator(conn, def, driver->caps); + if (!emulator) + goto cleanup; + + /* Make sure the binary we are about to try exec'ing exists. + * Technically we could catch the exec() failure, but that's + * in a sub-process so its hard to feed back a useful error + */ + if (stat(emulator, &sb) < 0) { + virReportSystemError(conn, errno, + _("Cannot find QEMU binary %s"), + emulator); + goto cleanup; + } + + if (qemudExtractVersionInfo(emulator, + NULL, + &qemuCmdFlags) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("Cannot determine QEMU argv syntax %s"), + emulator); + goto cleanup; + } + + + if (qemudBuildCommandLine(conn, driver, def, + qemuCmdFlags, + &retargv, &retenv, + NULL, NULL, /* Don't want it to create TAP devices */ + NULL) < 0) { + goto cleanup; + } + + tmp = retenv; + while (*tmp) { + virBufferAdd(&buf, *tmp, strlen(*tmp)); + virBufferAddLit(&buf, " "); + tmp++; + } + tmp = retargv; + while (*tmp) { + virBufferAdd(&buf, *tmp, strlen(*tmp)); + virBufferAddLit(&buf, " "); + tmp++; + } + + if (virBufferError(&buf)) + goto cleanup; + + ret = virBufferContentAndReset(&buf); + +cleanup: + for (tmp = retargv ; tmp && *tmp ; tmp++) + VIR_FREE(*tmp); + VIR_FREE(retargv); + + for (tmp = retenv ; tmp && *tmp ; tmp++) + VIR_FREE(*tmp); + VIR_FREE(retenv); + + virDomainDefFree(def); + return ret; +} + + static int qemudListDefinedDomains(virConnectPtr conn, char **const names, int nnames) { struct qemud_driver *driver = conn->privateData; @@ -5232,7 +5349,7 @@ static virDriver qemuDriver = { qemudNodeGetSecurityModel, /* nodeGetSecurityModel */ qemudDomainDumpXML, /* domainDumpXML */ NULL, /* domainXmlFromNative */ - NULL, /* domainXmlToNative */ + qemuDomainXMLToNative, /* domainXMLToNative */ qemudListDefinedDomains, /* listDefinedDomains */ qemudNumDefinedDomains, /* numOfDefinedDomains */ qemudDomainStart, /* domainCreate */ diff -r f55fa9b69d85 src/xen_unified.c --- a/src/xen_unified.c Wed May 13 13:13:18 2009 +0100 +++ b/src/xen_unified.c Wed May 13 13:16:50 2009 +0100 @@ -1043,6 +1043,97 @@ xenUnifiedDomainDumpXML (virDomainPtr do return NULL; } + +static char * +xenUnifiedDomainXMLFromNative(virConnectPtr conn, + const char *format, + const char *config, + unsigned int flags ATTRIBUTE_UNUSED) +{ + virDomainDefPtr def = NULL; + char *ret = NULL; + virConfPtr conf = NULL; + GET_PRIVATE(conn); + + if (STRNEQ(format, XEN_CONFIG_FORMAT_XM) && + STRNEQ(format, XEN_CONFIG_FORMAT_SEXPR)) { + xenUnifiedError(conn, VIR_ERR_INVALID_ARG, + _("unsupported config type %s"), format); + return NULL; + } + + if (STREQ(format, XEN_CONFIG_FORMAT_XM)) { + conf = virConfReadMem(config, strlen(config)); + if (!conf) + goto cleanup; + + def = xenXMDomainConfigParse(conn, conf); + } else if (STREQ(format, XEN_CONFIG_FORMAT_SEXPR)) { + def = xenDaemonParseSxprString(conn, config, priv->xendConfigVersion); + } + if (!def) + goto cleanup; + + ret = virDomainDefFormat(conn, def, 0); + +cleanup: + virDomainDefFree(def); + return ret; +} + + +#define MAX_CONFIG_SIZE (1024 * 65) +static char * +xenUnifiedDomainXMLToNative(virConnectPtr conn, + const char *format, + const char *xmlData, + unsigned int flags ATTRIBUTE_UNUSED) +{ + virDomainDefPtr def = NULL; + char *ret = NULL; + virConfPtr conf = NULL; + GET_PRIVATE(conn); + + if (STRNEQ(format, XEN_CONFIG_FORMAT_XM) && + STRNEQ(format, XEN_CONFIG_FORMAT_SEXPR)) { + xenUnifiedError(conn, VIR_ERR_INVALID_ARG, + _("unsupported config type %s"), format); + goto cleanup; + } + + if (!(def = virDomainDefParseString(conn, + priv->caps, + xmlData, + 0))) + goto cleanup; + + if (STREQ(format, XEN_CONFIG_FORMAT_XM)) { + int len = MAX_CONFIG_SIZE; + conf = xenXMDomainConfigFormat(conn, def); + if (!conf) + goto cleanup; + + if (VIR_ALLOC_N(ret, len) < 0) { + virReportOOMError(conn); + goto cleanup; + } + + if (virConfWriteMem(ret, &len, conf) < 0) { + VIR_FREE(ret); + goto cleanup; + } + } else if (STREQ(format, XEN_CONFIG_FORMAT_SEXPR)) { + ret = xenDaemonFormatSxpr(conn, def, priv->xendConfigVersion); + } + +cleanup: + virDomainDefFree(def); + if (conf) + virConfFree(conf); + return ret; +} + + static int xenUnifiedDomainMigratePrepare (virConnectPtr dconn, char **cookie, @@ -1580,8 +1671,8 @@ static virDriver xenUnifiedDriver = { NULL, /* domainGetSecurityLabel */ NULL, /* nodeGetSecurityModel */ xenUnifiedDomainDumpXML, /* domainDumpXML */ - NULL, /* domainXmlFromNative */ - NULL, /* domainXmlToNative */ + xenUnifiedDomainXMLFromNative, /* domainXmlFromNative */ + xenUnifiedDomainXMLToNative, /* domainXmlToNative */ xenUnifiedListDefinedDomains, /* listDefinedDomains */ xenUnifiedNumOfDefinedDomains, /* numOfDefinedDomains */ xenUnifiedDomainCreate, /* domainCreate */ diff -r f55fa9b69d85 src/xen_unified.h --- a/src/xen_unified.h Wed May 13 13:13:18 2009 +0100 +++ b/src/xen_unified.h Wed May 13 13:16:50 2009 +0100 @@ -46,6 +46,9 @@ extern int xenRegister (void); #define MIN_XEN_GUEST_SIZE 64 /* 64 megabytes */ +#define XEN_CONFIG_FORMAT_XM "xen-xm" +#define XEN_CONFIG_FORMAT_SEXPR "xen-sxpr" + /* _xenUnifiedDriver: * * Entry points into the underlying Xen drivers. This structure -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
On Wed, May 13, 2009 at 03:38:57PM +0100, Daniel P. Berrange wrote:
This patches provides an implenmentation of the new APIs for Xen which can convert to/from both XM config format (/etc/xen files), and the SEXPR format used by XenD. The former is most useful to end users, but it was easy to add the latter too, so I did. It can be a useful debugging aid sometimes. For QEMU, it implemnets export of domain XML into the QEMU argv format.
qemu_conf.c | 25 +++++------- qemu_conf.h | 3 + qemu_driver.c | 119 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++- xen_unified.c | 95 +++++++++++++++++++++++++++++++++++++++++++++- xen_unified.h | 3 + 5 files changed, 228 insertions(+), 17 deletions(-)
Daniel
diff -r f55fa9b69d85 src/qemu_conf.c --- a/src/qemu_conf.c Wed May 13 13:13:18 2009 +0100 +++ b/src/qemu_conf.c Wed May 13 13:16:50 2009 +0100 @@ -1248,21 +1248,18 @@ int qemudBuildCommandLine(virConnectPtr
case VIR_DOMAIN_NET_TYPE_ETHERNET: { - char arg[PATH_MAX]; - if (net->ifname) { - if (snprintf(arg, PATH_MAX-1, "tap,ifname=%s,script=%s,vlan=%d", - net->ifname, - net->data.ethernet.script, - vlan) >= (PATH_MAX-1)) - goto error; - } else { - if (snprintf(arg, PATH_MAX-1, "tap,script=%s,vlan=%d", - net->data.ethernet.script, - vlan) >= (PATH_MAX-1)) - goto error; - } + virBuffer buf = VIR_BUFFER_INITIALIZER;
- ADD_ARG_LIT(arg); + virBufferAddLit(&buf, "tap"); + if (net->ifname) + virBufferVSprintf(&buf, ",ifname=%s", net->ifname); + if (net->data.ethernet.script) + virBufferVSprintf(&buf, ",script=%s", net->data.ethernet.script); + virBufferVSprintf(&buf, ",vlan=%d", vlan); + if (virBufferError(&buf)) + goto error; + + ADD_ARG(virBufferContentAndReset(&buf)); } break;
Hum, that part looks a bit orthogonal to the patch itself, isn't it ? [...]
+ /* Since we're just exporting args, we can't do bridge/network + * setups, since libvirt will normally create TAP devices + * directly. We convert those configs into generic 'ethernet' + * config and assume the user has suitable 'ifup-qemu' scripts + */ + for (i = 0 ; i < def->nnets ; i++) { + virDomainNetDefPtr net = def->nets[i]; + if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) { + VIR_FREE(net->data.network.name); + net->type = VIR_DOMAIN_NET_TYPE_ETHERNET; + net->data.ethernet.dev = NULL; + net->data.ethernet.script = NULL; + net->data.ethernet.ipaddr = NULL; + } else if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) { + net->type = VIR_DOMAIN_NET_TYPE_ETHERNET; + /* Rely on fact that the 'ethernet' and 'bridge' + * union structs have members in same place */
Hum, it's a bit fishy... why not play safe, shaving a couple microseconds here is probably not worth it. [...]
+cleanup: + for (tmp = retargv ; tmp && *tmp ; tmp++)
weird, we use a static string just for "" ?
+ VIR_FREE(*tmp); + VIR_FREE(retargv); + + for (tmp = retenv ; tmp && *tmp ; tmp++)
same
+ VIR_FREE(*tmp); + VIR_FREE(retenv);
[...]
--- a/src/xen_unified.h Wed May 13 13:13:18 2009 +0100 +++ b/src/xen_unified.h Wed May 13 13:16:50 2009 +0100 @@ -46,6 +46,9 @@ extern int xenRegister (void);
#define MIN_XEN_GUEST_SIZE 64 /* 64 megabytes */
+#define XEN_CONFIG_FORMAT_XM "xen-xm" +#define XEN_CONFIG_FORMAT_SEXPR "xen-sxpr"
Actually, shouldn't those be part of the public headers instead I'm afraid I'm missing something here ... Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel@veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/
On Wed, May 13, 2009 at 05:59:38PM +0200, Daniel Veillard wrote:
On Wed, May 13, 2009 at 03:38:57PM +0100, Daniel P. Berrange wrote:
This patches provides an implenmentation of the new APIs for Xen which can convert to/from both XM config format (/etc/xen files), and the SEXPR format used by XenD. The former is most useful to end users, but it was easy to add the latter too, so I did. It can be a useful debugging aid sometimes. For QEMU, it implemnets export of domain XML into the QEMU argv format.
--- a/src/qemu_conf.c Wed May 13 13:13:18 2009 +0100 +++ b/src/qemu_conf.c Wed May 13 13:16:50 2009 +0100 @@ -1248,21 +1248,18 @@ int qemudBuildCommandLine(virConnectPtr
case VIR_DOMAIN_NET_TYPE_ETHERNET: { - char arg[PATH_MAX]; - if (net->ifname) { - if (snprintf(arg, PATH_MAX-1, "tap,ifname=%s,script=%s,vlan=%d", - net->ifname, - net->data.ethernet.script, - vlan) >= (PATH_MAX-1)) - goto error; - } else { - if (snprintf(arg, PATH_MAX-1, "tap,script=%s,vlan=%d", - net->data.ethernet.script, - vlan) >= (PATH_MAX-1)) - goto error; - } + virBuffer buf = VIR_BUFFER_INITIALIZER;
- ADD_ARG_LIT(arg); + virBufferAddLit(&buf, "tap"); + if (net->ifname) + virBufferVSprintf(&buf, ",ifname=%s", net->ifname); + if (net->data.ethernet.script) + virBufferVSprintf(&buf, ",script=%s", net->data.ethernet.script); + virBufferVSprintf(&buf, ",vlan=%d", vlan); + if (virBufferError(&buf)) + goto error; + + ADD_ARG(virBufferContentAndReset(&buf)); } break;
Hum, that part looks a bit orthogonal to the patch itself, isn't it ?
Sort of. The problem was that the original code assumed 'script' was non-NULL. With the way we call it now, it is not guarenteed to be non-NULL. Actually it was never really guarenteed non-NULL ever.
[...]
+ /* Since we're just exporting args, we can't do bridge/network + * setups, since libvirt will normally create TAP devices + * directly. We convert those configs into generic 'ethernet' + * config and assume the user has suitable 'ifup-qemu' scripts + */ + for (i = 0 ; i < def->nnets ; i++) { + virDomainNetDefPtr net = def->nets[i]; + if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) { + VIR_FREE(net->data.network.name); + net->type = VIR_DOMAIN_NET_TYPE_ETHERNET; + net->data.ethernet.dev = NULL; + net->data.ethernet.script = NULL; + net->data.ethernet.ipaddr = NULL; + } else if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) { + net->type = VIR_DOMAIN_NET_TYPE_ETHERNET; + /* Rely on fact that the 'ethernet' and 'bridge' + * union structs have members in same place */
Hum, it's a bit fishy... why not play safe, shaving a couple microseconds here is probably not worth it.
[...]
+cleanup: + for (tmp = retargv ; tmp && *tmp ; tmp++)
weird, we use a static string just for "" ?
+ VIR_FREE(*tmp); + VIR_FREE(retargv); + + for (tmp = retenv ; tmp && *tmp ; tmp++)
same
I'm not sure what you mean here ? What is happening is that qemudBuildCommandLine() gives us back 2 arrays of strings, char **retargv, and char **retenv. Normally these are passed straight to execve() as is. In this case though, we just concatentation all the strings in the 2 arrays together into one big string, and return this to the caller. So these few lines are just free'ing the 2 arrays we no longer need.
--- a/src/xen_unified.h Wed May 13 13:13:18 2009 +0100 +++ b/src/xen_unified.h Wed May 13 13:16:50 2009 +0100 @@ -46,6 +46,9 @@ extern int xenRegister (void);
#define MIN_XEN_GUEST_SIZE 64 /* 64 megabytes */
+#define XEN_CONFIG_FORMAT_XM "xen-xm" +#define XEN_CONFIG_FORMAT_SEXPR "xen-sxpr"
Actually, shouldn't those be part of the public headers instead I'm afraid I'm missing something here ...
You'd pass these kind of values into the 'char *nativeFormat' parameter but I wasn't really considering them part of the stable ABI/API. The config formats each driver supports are specific to particular backends and particular HV versions. So I decided it was better not to expose them directly. Perhaps we could add them to the capabilities XML format though, as dynamically exported data, so they're not ABI.
Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
On Wed, May 13, 2009 at 05:08:00PM +0100, Daniel P. Berrange wrote:
+cleanup: + for (tmp = retargv ; tmp && *tmp ; tmp++)
weird, we use a static string just for "" ?
+ VIR_FREE(*tmp); + VIR_FREE(retargv); + + for (tmp = retenv ; tmp && *tmp ; tmp++)
same
I'm not sure what you mean here ?
I got confused about the 'tmp && *tmp' Somehow my brain expect the tmp check to be out of the loop since the step 'tmp++' should not get it back to NULL.
--- a/src/xen_unified.h Wed May 13 13:13:18 2009 +0100 +++ b/src/xen_unified.h Wed May 13 13:16:50 2009 +0100 @@ -46,6 +46,9 @@ extern int xenRegister (void);
#define MIN_XEN_GUEST_SIZE 64 /* 64 megabytes */
+#define XEN_CONFIG_FORMAT_XM "xen-xm" +#define XEN_CONFIG_FORMAT_SEXPR "xen-sxpr"
Actually, shouldn't those be part of the public headers instead I'm afraid I'm missing something here ...
You'd pass these kind of values into the 'char *nativeFormat' parameter but I wasn't really considering them part of the stable ABI/API. The config formats each driver supports are specific to particular backends and particular HV versions. So I decided it was better not to expose them directly. Perhaps we could add them to the capabilities XML format though, as dynamically exported data, so they're not ABI.
well that would be fine too, just that user shouldn't have to google or guess to make sense of it. Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel@veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/
This provides the QEMU driver implementation which is able to convert from QEMU argv into domain XML. This is alot of hard code, because we have to parse and interpret arbitrary QEMU args and had no existing code doing this. This is also actually the single most useful feature of this patchset, and the original motivation. With this available, it makes it very easy for people using QEMU to switch over to using libvirt for management domain_conf.h | 2 qemu_conf.c | 1183 ++++++++++++++++++++++++++++++++++++++++++++++++++++++- qemu_conf.h | 8 qemu_driver.c | 26 + vbox/vbox_tmpl.c | 4 5 files changed, 1217 insertions(+), 6 deletions(-) Daniel diff -r b052a7f425ac src/domain_conf.h --- a/src/domain_conf.h Wed May 13 10:02:15 2009 -0400 +++ b/src/domain_conf.h Wed May 13 10:02:17 2009 -0400 @@ -253,7 +253,7 @@ enum virDomainSoundModel { VIR_DOMAIN_SOUND_MODEL_SB16, VIR_DOMAIN_SOUND_MODEL_ES1370, VIR_DOMAIN_SOUND_MODEL_PCSPK, - VIR_DOMAIN_SOUND_MODEL_ES97, + VIR_DOMAIN_SOUND_MODEL_AC97, VIR_DOMAIN_SOUND_MODEL_LAST }; diff -r b052a7f425ac src/qemu_conf.c --- a/src/qemu_conf.c Wed May 13 10:02:15 2009 -0400 +++ b/src/qemu_conf.c Wed May 13 10:06:30 2009 -0400 @@ -1,5 +1,5 @@ /* - * config.c: VM configuration management + * qemu_conf.c: QEMU configuration management * * Copyright (C) 2006, 2007, 2008, 2009 Red Hat, Inc. * Copyright (C) 2006 Daniel P. Berrange @@ -36,6 +36,7 @@ #include <arpa/inet.h> #include <sys/utsname.h> +#include "c-ctype.h" #include "virterror_internal.h" #include "qemu_conf.h" #include "uuid.h" @@ -1539,6 +1540,1186 @@ int qemudBuildCommandLine(virConnectPtr } +/* + * This method takes a string representing a QEMU command line ARGV set + * optionall prefixed by a list of environment variables. It then tries + * to split it up into a NULL terminated list of env & argv, splitting + * on space + */ +static int qemuStringToArgvEnv(const char *args, + const char ***retenv, + const char ***retargv) +{ + char **arglist = NULL; + int argcount = 0; + int envend; + int i; + const char *curr = args; + const char **progenv = NULL; + const char **progargv = NULL; + + /* Iterate over string, splitting on sequences of ' ' */ + while (curr && *curr != '\0') { + char *arg; + const char *next = strchr(curr, ' '); + if (!next) + next = strchr(curr, '\n'); + + if (next) + arg = strndup(curr, next-curr); + else + arg = strdup(curr); + + if (!arg) + goto no_memory; + + if (VIR_REALLOC_N(arglist, argcount+1) < 0) { + VIR_FREE(arg); + goto no_memory; + } + + arglist[argcount++] = arg; + + while (next && c_isspace(*next)) + next++; + + curr = next; + } + + /* Iterate over list of args, finding first arg not containining + * and '=' character (eg, skip over env vars FOO=bar) */ + for (envend = 0 ; envend < argcount && strchr(arglist[envend], '=') ; envend++) + ; /* nada */ + + /* Copy the list of env vars */ + if (envend > 0) { + if (VIR_REALLOC_N(progenv, envend+1) < 0) + goto no_memory; + for (i = 0 ; i < envend ; i++) { + progenv[i] = arglist[i]; + } + progenv[i] = NULL; + } + + /* Copy the list of argv */ + if (VIR_REALLOC_N(progargv, argcount-envend + 1) < 0) + goto no_memory; + for (i = envend ; i < argcount ; i++) + progargv[i-envend] = arglist[i]; + progargv[i-envend] = NULL; + + VIR_FREE(arglist); + + *retenv = progenv; + *retargv = progargv; + + return 0; + +no_memory: + for (i = 0 ; progenv && progenv[i] ; i++) + VIR_FREE(progenv); + VIR_FREE(progenv); + for (i = 0 ; i < argcount ; i++) + VIR_FREE(arglist[i]); + VIR_FREE(arglist); + return -1; +} + + +/* + * Search for a named env variable, and return the value part + */ +static const char *qemuFindEnv(const char **progenv, + const char *name) +{ + int i; + int len = strlen(name); + + for (i = 0 ; progenv[i] ; i++) { + if (STREQLEN(progenv[i], name, len) && + progenv[i][len] == '=') + return progenv[i] + len + 1; + } + return NULL; +} + +/* + * Takes a string containing a set of key=value,key=value,key... + * parameters and splits them up, returning two arrays with + * the individual keys and values + */ +static int +qemuParseCommandLineKeywords(virConnectPtr conn, + const char *str, + char ***retkeywords, + char ***retvalues) +{ + int nkeywords = 0; + char **keywords = NULL; + char **values = NULL; + const char *start = str; + int i; + + *retkeywords = NULL; + *retvalues = NULL; + + while (start) { + const char *separator; + const char *endmark; + char *keyword; + char *value; + + if (!(separator = strchr(start, '='))) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("malformed keyword arguments in '%s'"), str); + goto error; + } + if (!(keyword = strndup(start, separator - start))) + goto no_memory; + + separator++; + endmark = strchr(separator, ','); + + value = endmark ? + strndup(separator, endmark - separator) : + strdup(separator); + if (!value) { + VIR_FREE(keyword); + goto no_memory; + } + + if (VIR_REALLOC_N(keywords, nkeywords+1) < 0 || + VIR_REALLOC_N(values, nkeywords+1) < 0) { + VIR_FREE(keyword); + VIR_FREE(value); + goto no_memory; + } + + keywords[nkeywords] = keyword; + values[nkeywords] = value; + nkeywords++; + + start = endmark ? endmark + 1 : NULL; + } + + *retkeywords = keywords; + *retvalues = values; + + return nkeywords; + +no_memory: + virReportOOMError(conn); +error: + for (i = 0 ; i < nkeywords ; i++) { + VIR_FREE(keywords[i]); + VIR_FREE(values[i]); + } + VIR_FREE(keywords); + VIR_FREE(values); + return -1; +} + +/* + * Tries to parse new style QEMU -drive args + * + * eg + * -drive file=/dev/HostVG/VirtData1,if=ide,index=1 - + */ +static virDomainDiskDefPtr +qemuParseCommandLineDisk(virConnectPtr conn, + const char *val) +{ + virDomainDiskDefPtr def = NULL; + char **keywords; + char **values; + int nkeywords; + int i; + int idx = -1; + + if ((nkeywords = qemuParseCommandLineKeywords(conn, val, + &keywords, + &values)) < 0) + return NULL; + + if (VIR_ALLOC(def) < 0) { + virReportOOMError(conn); + goto cleanup; + } + + def->bus = VIR_DOMAIN_DISK_BUS_IDE; + def->device = VIR_DOMAIN_DISK_DEVICE_DISK; + + for (i = 0 ; i < nkeywords ; i++) { + if (STREQ(keywords[i], "file")) { + def->src = values[i]; + values[i] = NULL; + if (STRPREFIX(def->src, "/dev/")) + def->type = VIR_DOMAIN_DISK_TYPE_BLOCK; + else + def->type = VIR_DOMAIN_DISK_TYPE_FILE; + } else if (STREQ(keywords[i], "if")) { + if (STREQ(values[i], "ide")) + def->bus = VIR_DOMAIN_DISK_BUS_IDE; + else if (STREQ(values[i], "scsi")) + def->bus = VIR_DOMAIN_DISK_BUS_SCSI; + else if (STREQ(values[i], "virtio")) + def->bus = VIR_DOMAIN_DISK_BUS_VIRTIO; + else if (STREQ(values[i], "xen")) + def->bus = VIR_DOMAIN_DISK_BUS_XEN; + } else if (STREQ(keywords[i], "media")) { + if (STREQ(values[i], "cdrom")) { + def->device = VIR_DOMAIN_DISK_DEVICE_CDROM; + def->readonly = 1; + } else if (STREQ(values[i], "floppy")) + def->device = VIR_DOMAIN_DISK_DEVICE_FLOPPY; + } else if (STREQ(keywords[i], "format")) { + def->driverName = strdup("qemu"); + if (!def->driverName) { + virDomainDiskDefFree(def); + def = NULL; + virReportOOMError(conn); + goto cleanup; + } + def->driverType = values[i]; + values[i] = NULL; + } else if (STREQ(keywords[i], "cache")) { + if (STREQ(values[i], "off") || + STREQ(values[i], "none")) + def->cachemode = VIR_DOMAIN_DISK_CACHE_DISABLE; + else if (STREQ(values[i], "writeback") || + STREQ(values[i], "on")) + def->cachemode = VIR_DOMAIN_DISK_CACHE_WRITEBACK; + else if (STREQ(values[i], "writethrough")) + def->cachemode = VIR_DOMAIN_DISK_CACHE_WRITETHRU; + } else if (STREQ(keywords[i], "index")) { + if (virStrToLong_i(values[i], NULL, 10, &idx) < 0) { + virDomainDiskDefFree(def); + def = NULL; + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot parse drive index '%s'"), val); + goto cleanup; + } + } + } + + if (!def->src) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("missing file parameter in drive '%s'"), val); + virDomainDiskDefFree(def); + def = NULL; + goto cleanup; + } + if (idx == -1) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("missing index parameter in drive '%s'"), val); + virDomainDiskDefFree(def); + def = NULL; + goto cleanup; + } + + if (def->bus == VIR_DOMAIN_DISK_BUS_IDE) { + def->dst = strdup("hda"); + } else if (def->bus == VIR_DOMAIN_DISK_BUS_SCSI) { + def->dst = strdup("sda"); + } else if (def->bus == VIR_DOMAIN_DISK_BUS_VIRTIO) { + def->dst = strdup("vda"); + } else if (def->bus == VIR_DOMAIN_DISK_BUS_XEN) { + def->dst = strdup("xvda"); + } else { + def->dst = strdup("hda"); + } + + if (!def->dst) { + virDomainDiskDefFree(def); + def = NULL; + virReportOOMError(conn); + goto cleanup; + } + if (STREQ(def->dst, "xvda")) + def->dst[3] = 'a' + idx; + else + def->dst[2] = 'a' + idx; + +cleanup: + for (i = 0 ; i < nkeywords ; i++) { + VIR_FREE(keywords[i]); + VIR_FREE(values[i]); + } + VIR_FREE(keywords); + VIR_FREE(values); + return def; +} + +/* + * Tries to find a NIC definition matching a vlan we want + */ +static const char * +qemuFindNICForVLAN(virConnectPtr conn, + int nnics, + const char **nics, + int wantvlan) +{ + int i; + for (i = 0 ; i < nnics ; i++) { + int gotvlan; + const char *tmp = strstr(nics[i], "vlan="); + char *end; + if (tmp) + tmp += strlen("vlan="); + + if (virStrToLong_i(tmp, &end, 10, &gotvlan) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot parse NIC vlan in '%s'"), nics[i]); + return NULL; + } + + if (gotvlan == wantvlan) + return nics[i]; + } + + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot find NIC definition for vlan %d"), wantvlan); + return NULL; +} + + +/* + * Tries to parse a QEMU -net backend argument. Gets given + * a list of all known -net frontend arguments to try and + * match up against. Horribly complicated stuff + */ +static virDomainNetDefPtr +qemuParseCommandLineNet(virConnectPtr conn, + const char *val, + int nnics, + const char **nics) +{ + virDomainNetDefPtr def = NULL; + char **keywords; + char **values; + int nkeywords; + const char *nic; + int wantvlan = 0; + const char *tmp; + int i; + + tmp = strchr(val, ','); + if (!tmp) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract NIC type from '%s'"), val); + return NULL; + } + + if ((nkeywords = qemuParseCommandLineKeywords(conn, + tmp+1, + &keywords, + &values)) < 0) + return NULL; + + if (VIR_ALLOC(def) < 0) { + virReportOOMError(conn); + goto cleanup; + } + + /* 'tap' could turn into libvirt type=ethernet, type=bridge or + * type=network, but we can't tell, so use the generic config */ + if (STRPREFIX(val, "tap,")) + def->type = VIR_DOMAIN_NET_TYPE_ETHERNET; + else if (STRPREFIX(val, "socket")) + def->type = VIR_DOMAIN_NET_TYPE_CLIENT; + else if (STRPREFIX(val, "user")) + def->type = VIR_DOMAIN_NET_TYPE_USER; + else + def->type = VIR_DOMAIN_NET_TYPE_ETHERNET; + + for (i = 0 ; i < nkeywords ; i++) { + if (STREQ(keywords[i], "vlan")) { + if (virStrToLong_i(values[i], NULL, 10, &wantvlan) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot parse vlan in '%s'"), val); + virDomainNetDefFree(def); + def = NULL; + goto cleanup; + } + } else if (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET && + STREQ(keywords[i], "script") && STRNEQ(values[i], "")) { + def->data.ethernet.script = values[i]; + values[i] = NULL; + } else if (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET && + STREQ(keywords[i], "ifname")) { + def->data.ethernet.dev = values[i]; + values[i] = NULL; + } + } + + + /* Done parsing the nic backend. Now to try and find corresponding + * frontend, based off vlan number. NB this assumes a 1-1 mapping + */ + + nic = qemuFindNICForVLAN(conn, nnics, nics, wantvlan); + if (!nic) { + virDomainNetDefFree(def); + def = NULL; + goto cleanup; + } + + if (!STRPREFIX(nic, "nic,")) { + virDomainNetDefFree(def); + def = NULL; + goto cleanup; + } + + for (i = 0 ; i < nkeywords ; i++) { + VIR_FREE(keywords[i]); + VIR_FREE(values[i]); + } + VIR_FREE(keywords); + VIR_FREE(values); + + if ((nkeywords = qemuParseCommandLineKeywords(conn, + nic + strlen("nic,"), + &keywords, + &values)) < 0) { + virDomainNetDefFree(def); + def = NULL; + goto cleanup; + } + + for (i = 0 ; i < nkeywords ; i++) { + if (STREQ(keywords[i], "macaddr")) { + virParseMacAddr(values[i], def->mac); + } else if (STREQ(keywords[i], "model")) { + def->model = values[i]; + values[i] = NULL; + } + } + +cleanup: + for (i = 0 ; i < nkeywords ; i++) { + VIR_FREE(keywords[i]); + VIR_FREE(values[i]); + } + VIR_FREE(keywords); + VIR_FREE(values); + return def; +} + + +/* + * Tries to parse a QEMU PCI device + */ +static virDomainHostdevDefPtr +qemuParseCommandLinePCI(virConnectPtr conn, + const char *val) +{ + virDomainHostdevDefPtr def = NULL; + int bus = 0, slot = 0, func = 0; + const char *start; + char *end; + + if (!STRPREFIX(val, "host=")) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("unknown PCI device syntax '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + + start = val + strlen("host="); + if (virStrToLong_i(start, &end, 16, &bus) < 0 || !end || *end != ':') { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device bus '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + start = end + 1; + if (virStrToLong_i(start, &end, 16, &slot) < 0 || !end || *end != '.') { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device slot '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + start = end + 1; + if (virStrToLong_i(start, NULL, 16, &func) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device function '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + + if (VIR_ALLOC(def) < 0) { + virReportOOMError(conn); + goto cleanup; + } + + def->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS; + def->managed = 1; + def->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI; + def->source.subsys.u.pci.bus = bus; + def->source.subsys.u.pci.slot = slot; + def->source.subsys.u.pci.function = func; + +cleanup: + return def; +} + + +/* + * Tries to parse a QEMU PCI device + */ +static virDomainHostdevDefPtr +qemuParseCommandLineUSB(virConnectPtr conn, + const char *val) +{ + virDomainHostdevDefPtr def = NULL; + int first = 0, second = 0; + const char *start; + char *end; + + if (!STRPREFIX(val, "host:")) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("unknown PCI device syntax '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + + start = val + strlen("host:"); + if (strchr(start, ':')) { + if (virStrToLong_i(start, &end, 16, &first) < 0 || !end || *end != ':') { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract USB device vendor '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + start = end + 1; + if (virStrToLong_i(start, NULL, 16, &second) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device product '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + } else { + if (virStrToLong_i(start, &end, 10, &first) < 0 || !end || *end != '.') { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device bus '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + start = end + 1; + if (virStrToLong_i(start, NULL, 10, &second) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device address '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + } + + if (VIR_ALLOC(def) < 0) { + virReportOOMError(conn); + goto cleanup; + } + + def->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS; + def->managed = 0; + def->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB; + if (*end == '.') { + def->source.subsys.u.usb.bus = first; + def->source.subsys.u.usb.device = second; + } else { + def->source.subsys.u.usb.vendor = first; + def->source.subsys.u.usb.product = second; + } + +cleanup: + return def; +} + + +/* + * Tries to parse a QEMU serial/parallel device + */ +static virDomainChrDefPtr +qemuParseCommandLineChr(virConnectPtr conn, + const char *val) +{ + virDomainChrDefPtr def; + + if (VIR_ALLOC(def) < 0) + goto no_memory; + + if (STREQ(val, "null")) { + def->type = VIR_DOMAIN_CHR_TYPE_NULL; + } else if (STREQ(val, "vc")) { + def->type = VIR_DOMAIN_CHR_TYPE_VC; + } else if (STREQ(val, "pty")) { + def->type = VIR_DOMAIN_CHR_TYPE_PTY; + } else if (STRPREFIX(val, "file:")) { + def->type = VIR_DOMAIN_CHR_TYPE_FILE; + def->data.file.path = strdup(val+strlen("file:")); + if (!def->data.file.path) + goto no_memory; + } else if (STRPREFIX(val, "pipe:")) { + def->type = VIR_DOMAIN_CHR_TYPE_PIPE; + def->data.file.path = strdup(val+strlen("pipe:")); + if (!def->data.file.path) + goto no_memory; + } else if (STREQ(val, "stdio")) { + def->type = VIR_DOMAIN_CHR_TYPE_STDIO; + } else if (STRPREFIX(val, "udp:")) { + const char *svc1, *host2, *svc2; + def->type = VIR_DOMAIN_CHR_TYPE_UDP; + val += strlen("udp:"); + svc1 = strchr(val, ':'); + host2 = svc1 ? strchr(svc1, '@') : NULL; + svc2 = host2 ? strchr(host2, ':') : NULL; + + if (svc1) + def->data.udp.connectHost = strndup(val, svc1-val); + else + def->data.udp.connectHost = strdup(val); + if (svc1) { + svc1++; + if (host2) + def->data.udp.connectService = strndup(svc1, host2-svc1); + else + def->data.udp.connectService = strdup(svc1); + } + + if (host2) { + host2++; + if (svc2) + def->data.udp.bindHost = strndup(host2, svc2-host2); + else + def->data.udp.bindHost = strdup(host2); + } + if (svc2) { + svc2++; + def->data.udp.bindService = strdup(svc2); + } + } else if (STRPREFIX(val, "tcp:") || + STRPREFIX(val, "telnet:")) { + const char *opt, *svc; + def->type = VIR_DOMAIN_CHR_TYPE_TCP; + if (STRPREFIX(val, "tcp:")) { + val += strlen("tcp:"); + } else { + val += strlen("telnet:"); + def->data.tcp.protocol = VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET; + } + svc = strchr(val, ':'); + if (!svc) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot find port number in character device %s"), val); + goto error; + } + opt = strchr(svc, ','); + if (opt && strstr(opt, "server")) + def->data.tcp.listen = 1; + + def->data.tcp.host = strndup(val, svc-val); + svc++; + if (opt) { + def->data.tcp.service = strndup(svc, opt-svc); + } else { + def->data.tcp.service = strdup(svc); + } + } else if (STRPREFIX(val, "unix:")) { + const char *opt; + val += strlen("unix:"); + opt = strchr(val, ','); + def->type = VIR_DOMAIN_CHR_TYPE_UNIX; + if (opt) { + if (strstr(opt, "listen")) + def->data.nix.listen = 1; + def->data.nix.path = strndup(val, opt-val); + } else { + def->data.nix.path = strdup(val); + } + if (!def->data.nix.path) + goto no_memory; + + } else if (STRPREFIX(val, "/dev")) { + def->type = VIR_DOMAIN_CHR_TYPE_DEV; + def->data.file.path = strdup(val); + if (!def->data.file.path) + goto no_memory; + } else { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("unknown character device syntax %s"), val); + goto error; + } + + return def; + +no_memory: + virReportOOMError(conn); +error: + virDomainChrDefFree(def); + return NULL; +} + +/* + * Analyse the env and argv settings and reconstruct a + * virDomainDefPtr representing these settings as closely + * as is practical. This is not an exact science.... + */ +virDomainDefPtr qemuParseCommandLine(virConnectPtr conn, + const char **progenv, + const char **progargv) +{ + virDomainDefPtr def; + int i; + int nographics = 0; + int fullscreen = 0; + char *path; + int nnics = 0; + const char **nics = NULL; + + if (!progargv[0]) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + "%s", _("no emulator path found")); + return NULL; + } + + if (VIR_ALLOC(def) < 0) + goto no_memory; + + def->id = -1; + def->memory = def->maxmem = 64 * 1024; + def->vcpus = 1; + def->features = (1 << VIR_DOMAIN_FEATURE_ACPI) + /*| (1 << VIR_DOMAIN_FEATURE_APIC)*/; + def->onReboot = VIR_DOMAIN_LIFECYCLE_RESTART; + def->onCrash = VIR_DOMAIN_LIFECYCLE_DESTROY; + def->onPoweroff = VIR_DOMAIN_LIFECYCLE_DESTROY; + def->virtType = VIR_DOMAIN_VIRT_QEMU; + if (!(def->emulator = strdup(progargv[0]))) + goto no_memory; + + if (strstr(def->emulator, "kvm")) { + def->virtType = VIR_DOMAIN_VIRT_KVM; + def->features |= (1 << VIR_DOMAIN_FEATURE_PAE); + } + + + if (strstr(def->emulator, "xenner")) + def->os.type = strdup("xen"); + else + def->os.type = strdup("hvm"); + if (!def->os.type) + goto no_memory; + + if (STRPREFIX(def->emulator, "qemu")) + path = def->emulator; + else + path = strstr(def->emulator, "qemu"); + if (path && + STRPREFIX(path, "qemu-system-")) + def->os.arch = strdup(path + strlen("qemu-system-")); + else + def->os.arch = strdup("i686"); + if (!def->os.arch) + goto no_memory; + +#define WANT_VALUE() \ + const char *val = progargv[++i]; \ + if (!val) { \ + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, \ + _("missing value for %s argument"), arg); \ + goto error; \ + } + + /* One initial loop to get list of NICs, so we + * can correlate them later */ + for (i = 1 ; progargv[i] ; i++) { + const char *arg = progargv[i]; + /* Make sure we have a single - for all options to + simplify next logic */ + if (STRPREFIX(arg, "--")) + arg++; + + if (STREQ(arg, "-net")) { + WANT_VALUE(); + if (STRPREFIX(val, "nic")) { + if (VIR_REALLOC_N(nics, nnics+1) < 0) + goto no_memory; + nics[nnics++] = val; + } + } + } + + /* Now the real processing loop */ + for (i = 1 ; progargv[i] ; i++) { + const char *arg = progargv[i]; + /* Make sure we have a single - for all options to + simplify next logic */ + if (STRPREFIX(arg, "--")) + arg++; + + if (STREQ(arg, "-vnc")) { + virDomainGraphicsDefPtr vnc; + char *tmp; + WANT_VALUE(); + if (VIR_ALLOC(vnc) < 0) + goto no_memory; + vnc->type = VIR_DOMAIN_GRAPHICS_TYPE_VNC; + vnc->data.vnc.autoport = 1; + + tmp = strchr(val, ':'); + if (tmp != val) { + vnc->data.vnc.listenAddr = strndup(val, tmp-val); + if (!vnc->data.vnc.listenAddr) { + VIR_FREE(vnc); + goto no_memory; + } + } + + if (VIR_REALLOC_N(def->graphics, def->ngraphics+1) < 0) { + virDomainGraphicsDefFree(vnc); + goto no_memory; + } + def->graphics[def->ngraphics++] = vnc; + } else if (STREQ(arg, "-m")) { + int mem; + WANT_VALUE(); + if (virStrToLong_i(val, NULL, 10, &mem) < 0) + goto error; + def->memory = def->maxmem = mem * 1024; + } else if (STREQ(arg, "-smp")) { + int vcpus; + WANT_VALUE(); + if (virStrToLong_i(val, NULL, 10, &vcpus) < 0) + goto error; + def->vcpus = vcpus; + } else if (STREQ(arg, "-uuid")) { + WANT_VALUE(); + if (virUUIDParse(val, def->uuid) < 0) + goto error; + } else if (STRPREFIX(arg, "-hd") || + STRPREFIX(arg, "-sd") || + STRPREFIX(arg, "-fd") || + STREQ(arg, "-cdrom")) { + WANT_VALUE(); + virDomainDiskDefPtr disk; + if (VIR_ALLOC(disk) < 0) + goto no_memory; + + if (STRPREFIX(val, "/dev/")) + disk->type = VIR_DOMAIN_DISK_TYPE_BLOCK; + else + disk->type = VIR_DOMAIN_DISK_TYPE_FILE; + if (STREQ(arg, "-cdrom")) { + disk->device = VIR_DOMAIN_DISK_DEVICE_CDROM; + disk->dst = strdup("hdc"); + disk->readonly = 1; + } else { + if (STRPREFIX(arg, "-fd")) { + disk->device = VIR_DOMAIN_DISK_DEVICE_FLOPPY; + disk->bus = VIR_DOMAIN_DISK_BUS_FDC; + } else { + disk->device = VIR_DOMAIN_DISK_DEVICE_DISK; + if (STRPREFIX(arg, "-hd")) + disk->bus = VIR_DOMAIN_DISK_BUS_IDE; + else + disk->bus = VIR_DOMAIN_DISK_BUS_SCSI; + } + disk->dst = strdup(arg + 1); + } + disk->src = strdup(val); + if (!disk->src || + !disk->dst) { + virDomainDiskDefFree(disk); + goto no_memory; + } + + if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) { + virDomainDiskDefFree(disk); + goto no_memory; + } + def->disks[def->ndisks++] = disk; + } else if (STREQ(arg, "-no-acpi")) { + def->features &= ~(1 << VIR_DOMAIN_FEATURE_ACPI); + } else if (STREQ(arg, "-no-reboot")) { + def->onReboot = VIR_DOMAIN_LIFECYCLE_DESTROY; + } else if (STREQ(arg, "-no-kvm")) { + def->virtType = VIR_DOMAIN_VIRT_QEMU; + } else if (STREQ(arg, "-nographic")) { + nographics = 1; + } else if (STREQ(arg, "-full-screen")) { + fullscreen = 1; + } else if (STREQ(arg, "-localtime")) { + def->localtime = 1; + } else if (STREQ(arg, "-kernel")) { + WANT_VALUE(); + if (!(def->os.kernel = strdup(val))) + goto no_memory; + } else if (STREQ(arg, "-initrd")) { + WANT_VALUE(); + if (!(def->os.initrd = strdup(val))) + goto no_memory; + } else if (STREQ(arg, "-append")) { + WANT_VALUE(); + if (!(def->os.cmdline = strdup(val))) + goto no_memory; + } else if (STREQ(arg, "-boot")) { + int n, b = 0; + WANT_VALUE(); + for (n = 0 ; val[n] && b < VIR_DOMAIN_BOOT_LAST ; n++) { + if (val[n] == 'a') + def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_FLOPPY; + else if (val[n] == 'c') + def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_DISK; + else if (val[n] == 'd') + def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_CDROM; + else if (val[n] == 'n') + def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_NET; + } + def->os.nBootDevs = b; + } else if (STREQ(arg, "-name")) { + WANT_VALUE(); + if (!(def->name = strdup(val))) + goto no_memory; + } else if (STREQ(arg, "-M")) { + WANT_VALUE(); + if (!(def->os.machine = strdup(val))) + goto no_memory; + } else if (STREQ(arg, "-serial")) { + WANT_VALUE(); + if (STRNEQ(val, "none")) { + virDomainChrDefPtr chr; + if (!(chr = qemuParseCommandLineChr(conn, val))) + goto error; + if (VIR_REALLOC_N(def->serials, def->nserials+1) < 0) { + virDomainChrDefFree(chr); + goto no_memory; + } + chr->dstPort = def->nserials; + def->serials[def->nserials++] = chr; + } + } else if (STREQ(arg, "-parallel")) { + WANT_VALUE(); + if (STRNEQ(val, "none")) { + virDomainChrDefPtr chr; + if (!(chr = qemuParseCommandLineChr(conn, val))) + goto error; + if (VIR_REALLOC_N(def->parallels, def->nparallels+1) < 0) { + virDomainChrDefFree(chr); + goto no_memory; + } + chr->dstPort = def->nparallels; + def->parallels[def->nparallels++] = chr; + } + } else if (STREQ(arg, "-usbdevice")) { + WANT_VALUE(); + if (STREQ(val, "tablet") || + STREQ(val, "mouse")) { + virDomainInputDefPtr input; + if (VIR_ALLOC(input) < 0) + goto no_memory; + input->bus = VIR_DOMAIN_INPUT_BUS_USB; + if (STREQ(val, "tablet")) + input->type = VIR_DOMAIN_INPUT_TYPE_TABLET; + else + input->type = VIR_DOMAIN_INPUT_TYPE_MOUSE; + if (VIR_REALLOC_N(def->inputs, def->ninputs+1) < 0) { + virDomainInputDefFree(input); + goto no_memory; + } + def->inputs[def->ninputs++] = input; + } else if (STRPREFIX(val, "disk:")) { + virDomainDiskDefPtr disk; + if (VIR_ALLOC(disk) < 0) + goto no_memory; + disk->src = strdup(val + strlen("disk:")); + if (!disk->src) { + virDomainDiskDefFree(disk); + goto no_memory; + } + if (STRPREFIX(disk->src, "/dev/")) + disk->type = VIR_DOMAIN_DISK_TYPE_BLOCK; + else + disk->type = VIR_DOMAIN_DISK_TYPE_FILE; + disk->device = VIR_DOMAIN_DISK_DEVICE_DISK; + disk->bus = VIR_DOMAIN_DISK_BUS_USB; + if (!(disk->dst = strdup("sda"))) { + virDomainDiskDefFree(disk); + goto no_memory; + } + if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) { + virDomainDiskDefFree(disk); + goto no_memory; + } + def->disks[def->ndisks++] = disk; + } else { + virDomainHostdevDefPtr hostdev; + if (!(hostdev = qemuParseCommandLineUSB(conn, val))) + goto error; + if (VIR_REALLOC_N(def->hostdevs, def->nhostdevs+1) < 0) { + virDomainHostdevDefFree(hostdev); + goto no_memory; + } + def->hostdevs[def->nhostdevs++] = hostdev; + } + } else if (STREQ(arg, "-net")) { + WANT_VALUE(); + if (!STRPREFIX(val, "nic") && STRNEQ(val, "none")) { + virDomainNetDefPtr net; + if (!(net = qemuParseCommandLineNet(conn, val, nnics, nics))) + goto error; + if (VIR_REALLOC_N(def->nets, def->nnets+1) < 0) { + virDomainNetDefFree(net); + goto no_memory; + } + def->nets[def->nnets++] = net; + } + } else if (STREQ(arg, "-drive")) { + virDomainDiskDefPtr disk; + WANT_VALUE(); + if (!(disk = qemuParseCommandLineDisk(conn, val))) + goto error; + if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) { + virDomainDiskDefFree(disk); + goto no_memory; + } + def->disks[def->ndisks++] = disk; + } else if (STREQ(arg, "-pcidevice")) { + virDomainHostdevDefPtr hostdev; + WANT_VALUE(); + if (!(hostdev = qemuParseCommandLinePCI(conn, val))) + goto error; + if (VIR_REALLOC_N(def->hostdevs, def->nhostdevs+1) < 0) { + virDomainHostdevDefFree(hostdev); + goto no_memory; + } + def->hostdevs[def->nhostdevs++] = hostdev; + } else if (STREQ(arg, "-soundhw")) { + const char *start; + WANT_VALUE(); + start = val; + while (start) { + const char *tmp = strchr(start, ','); + int type = -1; + if (STRPREFIX(start, "pcspk")) { + type = VIR_DOMAIN_SOUND_MODEL_PCSPK; + } else if (STRPREFIX(start, "sb16")) { + type = VIR_DOMAIN_SOUND_MODEL_SB16; + } else if (STRPREFIX(start, "es1370")) { + type = VIR_DOMAIN_SOUND_MODEL_ES1370; + } else if (STRPREFIX(start, "ac97")) { + type = VIR_DOMAIN_SOUND_MODEL_AC97; + } + + if (type != -1) { + virDomainSoundDefPtr snd; + if (VIR_ALLOC(snd) < 0) + goto no_memory; + snd->model = type; + if (VIR_REALLOC_N(def->sounds, def->nsounds+1) < 0) { + VIR_FREE(snd); + goto no_memory; + } + def->sounds[def->nsounds++] = snd; + } + + start = tmp ? tmp + 1 : NULL; + } + } else if (STREQ(arg, "-bootloader")) { + WANT_VALUE(); + def->os.bootloader = strdup(val); + if (!def->os.bootloader) + goto no_memory; + } else if (STREQ(arg, "-domid")) { + WANT_VALUE(); + /* ignore, generted on the fly */ + } else if (STREQ(arg, "-usb")) { + /* ignore, always added by libvirt */ + } else if (STREQ(arg, "-pidfile")) { + WANT_VALUE(); + /* ignore, used by libvirt as needed */ + } else if (STREQ(arg, "-incoming")) { + WANT_VALUE(); + /* ignore, used via restore/migrate APIs */ + } else if (STREQ(arg, "-monitor")) { + WANT_VALUE(); + /* ignore, used internally by libvirt */ + } else if (STREQ(arg, "-S")) { + /* ignore, always added by libvirt */ + } else { +#if 1 + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("unknown argument '%s'"), arg); + goto error; +#endif + } + } + +#undef WANT_VALUE + + if (!nographics && def->ngraphics == 0) { + virDomainGraphicsDefPtr sdl; + const char *display = qemuFindEnv(progenv, "DISPLAY"); + const char *xauth = qemuFindEnv(progenv, "XAUTHORITY"); + if (VIR_ALLOC(sdl) < 0) + goto no_memory; + sdl->type = VIR_DOMAIN_GRAPHICS_TYPE_SDL; + sdl->data.sdl.fullscreen = fullscreen; + if (display && + !(sdl->data.sdl.display = strdup(display))) { + VIR_FREE(sdl); + goto no_memory; + } + if (xauth && + !(sdl->data.sdl.xauth = strdup(xauth))) { + VIR_FREE(sdl); + goto no_memory; + } + + if (VIR_REALLOC_N(def->graphics, def->ngraphics+1) < 0) { + virDomainGraphicsDefFree(sdl); + goto no_memory; + } + def->graphics[def->ngraphics++] = sdl; + } + + VIR_FREE(nics); + + return def; + +no_memory: + virReportOOMError(conn); +error: + virDomainDefFree(def); + VIR_FREE(nics); + return NULL; +} + + +virDomainDefPtr qemuParseCommandLineString(virConnectPtr conn, + const char *args) +{ + const char **progenv = NULL; + const char **progargv = NULL; + virDomainDefPtr def = NULL; + int i; + + if (qemuStringToArgvEnv(args, &progenv, &progargv) < 0) + goto cleanup; + + def = qemuParseCommandLine(conn, progenv, progargv); + +cleanup: + for (i = 0 ; progargv && progargv[i] ; i++) + VIR_FREE(progargv[i]); + VIR_FREE(progargv); + + for (i = 0 ; progenv && progenv[i] ; i++) + VIR_FREE(progenv[i]); + VIR_FREE(progenv); + + return def; +} + + /* Called from SAX on parsing errors in the XML. */ static void catchXMLError (void *ctx, const char *msg ATTRIBUTE_UNUSED, ...) diff -r b052a7f425ac src/qemu_conf.h --- a/src/qemu_conf.h Wed May 13 10:02:15 2009 -0400 +++ b/src/qemu_conf.h Wed May 13 10:02:17 2009 -0400 @@ -1,5 +1,5 @@ /* - * config.h: VM configuration management + * qemu_conf.h: QEMU configuration management * * Copyright (C) 2006, 2007, 2009 Red Hat, Inc. * Copyright (C) 2006 Daniel P. Berrange @@ -135,6 +135,12 @@ int qemudBuildCommandLine int *ntapfds, const char *migrateFrom); +virDomainDefPtr qemuParseCommandLine(virConnectPtr conn, + const char **progenv, + const char **progargv); +virDomainDefPtr qemuParseCommandLineString(virConnectPtr conn, + const char *args); + const char *qemudVirtTypeToString (int type); qemudDomainStatusPtr qemudDomainStatusParseFile(virConnectPtr conn, virCapsPtr caps, diff -r b052a7f425ac src/qemu_driver.c --- a/src/qemu_driver.c Wed May 13 10:02:15 2009 -0400 +++ b/src/qemu_driver.c Wed May 13 10:02:17 2009 -0400 @@ -3422,6 +3422,30 @@ cleanup: return ret; } + +static char *qemuDomainXMLFromNative(virConnectPtr conn, + const char *format, + const char *config, + unsigned int flags ATTRIBUTE_UNUSED) { + virDomainDefPtr def = NULL; + char *xml = NULL; + + if (STRNEQ(format, QEMU_CONFIG_FORMAT_ARGV)) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INVALID_ARG, + _("unsupported config type %s"), format); + goto cleanup; + } + + def = qemuParseCommandLineString(conn, config); + if (!def) + goto cleanup; + + xml = virDomainDefFormat(conn, def, VIR_DOMAIN_XML_INACTIVE); + +cleanup: + virDomainDefFree(def); + return xml; +} static char *qemuDomainXMLToNative(virConnectPtr conn, const char *format, @@ -5348,7 +5372,7 @@ static virDriver qemuDriver = { qemudDomainGetSecurityLabel, /* domainGetSecurityLabel */ qemudNodeGetSecurityModel, /* nodeGetSecurityModel */ qemudDomainDumpXML, /* domainDumpXML */ - NULL, /* domainXmlFromNative */ + qemuDomainXMLFromNative, /* domainXmlFromNative */ qemuDomainXMLToNative, /* domainXMLToNative */ qemudListDefinedDomains, /* listDefinedDomains */ qemudNumDefinedDomains, /* numOfDefinedDomains */ diff -r b052a7f425ac src/vbox/vbox_tmpl.c --- a/src/vbox/vbox_tmpl.c Wed May 13 10:02:15 2009 -0400 +++ b/src/vbox/vbox_tmpl.c Wed May 13 10:02:17 2009 -0400 @@ -1803,7 +1803,7 @@ static char *vboxDomainDumpXML(virDomain if (audioController == AudioControllerType_SB16) { def->sounds[0]->model = VIR_DOMAIN_SOUND_MODEL_SB16; } else if (audioController == AudioControllerType_AC97) { - def->sounds[0]->model = VIR_DOMAIN_SOUND_MODEL_ES97; + def->sounds[0]->model = VIR_DOMAIN_SOUND_MODEL_AC97; } } else { VIR_FREE(def->sounds); @@ -2767,7 +2767,7 @@ static virDomainPtr vboxDomainDefineXML( if (NS_SUCCEEDED(rc)) { if (def->sounds[0]->model == VIR_DOMAIN_SOUND_MODEL_SB16) { audioAdapter->vtbl->SetAudioController(audioAdapter, AudioControllerType_SB16); - } else if (def->sounds[0]->model == VIR_DOMAIN_SOUND_MODEL_ES97) { + } else if (def->sounds[0]->model == VIR_DOMAIN_SOUND_MODEL_AC97) { audioAdapter->vtbl->SetAudioController(audioAdapter, AudioControllerType_AC97); } } -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
On Wed, May 13, 2009 at 03:40:54PM +0100, Daniel P. Berrange wrote:
This provides the QEMU driver implementation which is able to convert from QEMU argv into domain XML. This is alot of hard code, because we have to parse and interpret arbitrary QEMU args and had no existing code doing this. This is also actually the single most useful feature of this patchset, and the original motivation. With this available, it makes it very easy for people using QEMU to switch over to using libvirt for management [...] + /* Iterate over string, splitting on sequences of ' ' */ + while (curr && *curr != '\0') { + char *arg; + const char *next = strchr(curr, ' '); + if (!next) + next = strchr(curr, '\n'); + + if (next) + arg = strndup(curr, next-curr); + else + arg = strdup(curr); + + if (!arg) + goto no_memory; + + if (VIR_REALLOC_N(arglist, argcount+1) < 0) { + VIR_FREE(arg); + goto no_memory; + }
each time you use realloc in a loop god kill some innocent electrons Seriously realloc used to be really really slow on some systems but heh
+ arglist[argcount++] = arg; + + while (next && c_isspace(*next)) + next++; + + curr = next; + } + + /* Iterate over list of args, finding first arg not containining + * and '=' character (eg, skip over env vars FOO=bar) */
s/and /the /
+ for (envend = 0 ; envend < argcount && strchr(arglist[envend], '=') ; envend++)
can we parenthesize a bit ? (envend < argcount) && (strchr(arglist[envend], '=')) and break the long line ?
+ ; /* nada */ + + /* Copy the list of env vars */ + if (envend > 0) { + if (VIR_REALLOC_N(progenv, envend+1) < 0) + goto no_memory; + for (i = 0 ; i < envend ; i++) { + progenv[i] = arglist[i]; + } + progenv[i] = NULL; + } + + /* Copy the list of argv */ + if (VIR_REALLOC_N(progargv, argcount-envend + 1) < 0) + goto no_memory; + for (i = envend ; i < argcount ; i++) + progargv[i-envend] = arglist[i]; + progargv[i-envend] = NULL; + + VIR_FREE(arglist); + + *retenv = progenv; + *retargv = progargv; + + return 0; + +no_memory: + for (i = 0 ; progenv && progenv[i] ; i++) + VIR_FREE(progenv);
bug VIR_FREE(progenv[i]); if (progenv) could be moved out of the loop too but I'm so old fashionned... Reminds me my father complaining that those computer guys were lazy bastards because those Cray compilers could not vectorize his code properly and he had to do it by hand !
+ VIR_FREE(progenv); + for (i = 0 ; i < argcount ; i++) + VIR_FREE(arglist[i]); + VIR_FREE(arglist); + return -1; +} [...] +/* + * Takes a string containing a set of key=value,key=value,key... + * parameters and splits them up, returning two arrays with + * the individual keys and values + */ +static int +qemuParseCommandLineKeywords(virConnectPtr conn, + const char *str, + char ***retkeywords, + char ***retvalues)
typedef char **strtable; and strtable *retkeywords, strtable *retvalues but that would kill the fun of reading it [...]
+ while (start) { [...] + if (VIR_REALLOC_N(keywords, nkeywords+1) < 0 || + VIR_REALLOC_N(values, nkeywords+1) < 0) { + VIR_FREE(keyword); + VIR_FREE(value); + goto no_memory; + }
worse than a realloc in a loop, 2 reallocs in a loop ... Maybe we should do something about it, no ? Some nice macro which would define the array array##max array##cur and and allocation macro which would realloc only when array##cur reaches array##max ? [...]
+/* + * Tries to parse new style QEMU -drive args
Try only ?
+ * eg + * -drive file=/dev/HostVG/VirtData1,if=ide,index=1 -
Actually the parsing routine is not that bad...
+/* + * Tries to parse a QEMU -net backend argument. Gets given + * a list of all known -net frontend arguments to try and + * match up against. Horribly complicated stuff + */ +static virDomainNetDefPtr +qemuParseCommandLineNet(virConnectPtr conn, + const char *val, + int nnics, + const char **nics) +{
Agreed seems we are playing heuristics here...
+/* + * Tries to parse a QEMU PCI device
actually that one is USB :-)
+ */ +static virDomainHostdevDefPtr +qemuParseCommandLineUSB(virConnectPtr conn, + const char *val) +{ + } else { + if (virStrToLong_i(start, &end, 10, &first) < 0 || !end || *end != '.') { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device bus '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + start = end + 1; + if (virStrToLong_i(start, NULL, 10, &second) < 0) {
Hum, the base address is really expected to be given in base 10 ? I would assume it's base 16 instead, right ?
+ qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device address '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + } [...] +virDomainDefPtr qemuParseCommandLine(virConnectPtr conn, + const char **progenv, + const char **progargv) +{ [...] + if (!def->os.arch) + goto no_memory; + +#define WANT_VALUE() \ + const char *val = progargv[++i]; \ + if (!val) { \ + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, \ + _("missing value for %s argument"), arg); \ + goto error; \ + }
Urgh, I always feel that macro definition within function are an abuse of layering, sure it's preprocessor candy but that won't bring any safety ....
+ /* One initial loop to get list of NICs, so we + * can correlate them later */ + for (i = 1 ; progargv[i] ; i++) { + const char *arg = progargv[i]; + /* Make sure we have a single - for all options to + simplify next logic */ + if (STRPREFIX(arg, "--")) + arg++; + + if (STREQ(arg, "-net")) { + WANT_VALUE(); + if (STRPREFIX(val, "nic")) { + if (VIR_REALLOC_N(nics, nnics+1) < 0) + goto no_memory; + nics[nnics++] = val; + } + } + }
yes the network stuff is really ugly ! [...]
+ } else { +#if 1 + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("unknown argument '%s'"), arg); + goto error; +#endif
I would keep it in no matter what
+ } + } + +#undef WANT_VALUE
.... [...]
--- a/src/vbox/vbox_tmpl.c Wed May 13 10:02:15 2009 -0400 +++ b/src/vbox/vbox_tmpl.c Wed May 13 10:02:17 2009 -0400 @@ -1803,7 +1803,7 @@ static char *vboxDomainDumpXML(virDomain if (audioController == AudioControllerType_SB16) { def->sounds[0]->model = VIR_DOMAIN_SOUND_MODEL_SB16; } else if (audioController == AudioControllerType_AC97) { - def->sounds[0]->model = VIR_DOMAIN_SOUND_MODEL_ES97; + def->sounds[0]->model = VIR_DOMAIN_SOUND_MODEL_AC97; } } else { VIR_FREE(def->sounds); @@ -2767,7 +2767,7 @@ static virDomainPtr vboxDomainDefineXML( if (NS_SUCCEEDED(rc)) { if (def->sounds[0]->model == VIR_DOMAIN_SOUND_MODEL_SB16) { audioAdapter->vtbl->SetAudioController(audioAdapter, AudioControllerType_SB16); - } else if (def->sounds[0]->model == VIR_DOMAIN_SOUND_MODEL_ES97) { + } else if (def->sounds[0]->model == VIR_DOMAIN_SOUND_MODEL_AC97) { audioAdapter->vtbl->SetAudioController(audioAdapter, AudioControllerType_AC97); } }
The renaming of the ES97 into AC97 is IMHO orthogonal to this patch Conclusion is that it's time qemu switch out of crazy arg formats and get a decent config format instead ! This code could be a first step toward sanity, but good luck arguing with them upstream ! ACK, it's insane ! Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel@veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/
On Wed, May 13, 2009 at 06:53:44PM +0200, Daniel Veillard wrote:
On Wed, May 13, 2009 at 03:40:54PM +0100, Daniel P. Berrange wrote:
This provides the QEMU driver implementation which is able to convert from QEMU argv into domain XML. This is alot of hard code, because we have to parse and interpret arbitrary QEMU args and had no existing code doing this. This is also actually the single most useful feature of this patchset, and the original motivation. With this available, it makes it very easy for people using QEMU to switch over to using libvirt
Here's an update with the VIR_REALLOCs in the loop changed to alloc in chunks of 10. Also fixes a few misc bugs in the conversions, and the style items pointed out last time. Daniel diff -r 832729f8dd03 src/domain_conf.h --- a/src/domain_conf.h Tue May 19 18:43:30 2009 +0100 +++ b/src/domain_conf.h Tue May 19 18:43:59 2009 +0100 @@ -253,7 +253,7 @@ enum virDomainSoundModel { VIR_DOMAIN_SOUND_MODEL_SB16, VIR_DOMAIN_SOUND_MODEL_ES1370, VIR_DOMAIN_SOUND_MODEL_PCSPK, - VIR_DOMAIN_SOUND_MODEL_ES97, + VIR_DOMAIN_SOUND_MODEL_AC97, VIR_DOMAIN_SOUND_MODEL_LAST }; diff -r 832729f8dd03 src/qemu_conf.c --- a/src/qemu_conf.c Tue May 19 18:43:30 2009 +0100 +++ b/src/qemu_conf.c Tue May 19 18:43:59 2009 +0100 @@ -1,5 +1,5 @@ /* - * config.c: VM configuration management + * qemu_conf.c: QEMU configuration management * * Copyright (C) 2006, 2007, 2008, 2009 Red Hat, Inc. * Copyright (C) 2006 Daniel P. Berrange @@ -36,6 +36,7 @@ #include <arpa/inet.h> #include <sys/utsname.h> +#include "c-ctype.h" #include "virterror_internal.h" #include "qemu_conf.h" #include "uuid.h" @@ -1542,6 +1543,1229 @@ int qemudBuildCommandLine(virConnectPtr } +/* + * This method takes a string representing a QEMU command line ARGV set + * optionall prefixed by a list of environment variables. It then tries + * to split it up into a NULL terminated list of env & argv, splitting + * on space + */ +static int qemuStringToArgvEnv(const char *args, + const char ***retenv, + const char ***retargv) +{ + char **arglist = NULL; + int argcount = 0; + int argalloc = 0; + int envend; + int i; + const char *curr = args; + const char **progenv = NULL; + const char **progargv = NULL; + + /* Iterate over string, splitting on sequences of ' ' */ + while (curr && *curr != '\0') { + char *arg; + const char *next = strchr(curr, ' '); + if (!next) + next = strchr(curr, '\n'); + + if (next) + arg = strndup(curr, next-curr); + else + arg = strdup(curr); + + if (!arg) + goto no_memory; + + if (argalloc == argcount) { + if (VIR_REALLOC_N(arglist, argalloc+10) < 0) { + VIR_FREE(arg); + goto no_memory; + } + argalloc+=10; + } + + arglist[argcount++] = arg; + + while (next && c_isspace(*next)) + next++; + + curr = next; + } + + /* Iterate over list of args, finding first arg not containining + * the '=' character (eg, skip over env vars FOO=bar) */ + for (envend = 0 ; ((envend < argcount) && + (strchr(arglist[envend], '=') != NULL)); + envend++) + ; /* nada */ + + /* Copy the list of env vars */ + if (envend > 0) { + if (VIR_REALLOC_N(progenv, envend+1) < 0) + goto no_memory; + for (i = 0 ; i < envend ; i++) { + progenv[i] = arglist[i]; + } + progenv[i] = NULL; + } + + /* Copy the list of argv */ + if (VIR_REALLOC_N(progargv, argcount-envend + 1) < 0) + goto no_memory; + for (i = envend ; i < argcount ; i++) + progargv[i-envend] = arglist[i]; + progargv[i-envend] = NULL; + + VIR_FREE(arglist); + + *retenv = progenv; + *retargv = progargv; + + return 0; + +no_memory: + for (i = 0 ; progenv && progenv[i] ; i++) + VIR_FREE(progenv[i]); + VIR_FREE(progenv); + for (i = 0 ; i < argcount ; i++) + VIR_FREE(arglist[i]); + VIR_FREE(arglist); + return -1; +} + + +/* + * Search for a named env variable, and return the value part + */ +static const char *qemuFindEnv(const char **progenv, + const char *name) +{ + int i; + int len = strlen(name); + + for (i = 0 ; progenv[i] ; i++) { + if (STREQLEN(progenv[i], name, len) && + progenv[i][len] == '=') + return progenv[i] + len + 1; + } + return NULL; +} + +/* + * Takes a string containing a set of key=value,key=value,key... + * parameters and splits them up, returning two arrays with + * the individual keys and values + */ +static int +qemuParseCommandLineKeywords(virConnectPtr conn, + const char *str, + char ***retkeywords, + char ***retvalues) +{ + int keywordCount = 0; + int keywordAlloc = 0; + char **keywords = NULL; + char **values = NULL; + const char *start = str; + int i; + + *retkeywords = NULL; + *retvalues = NULL; + + while (start) { + const char *separator; + const char *endmark; + char *keyword; + char *value; + + if (!(separator = strchr(start, '='))) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("malformed keyword arguments in '%s'"), str); + goto error; + } + if (!(keyword = strndup(start, separator - start))) + goto no_memory; + + separator++; + endmark = strchr(separator, ','); + + value = endmark ? + strndup(separator, endmark - separator) : + strdup(separator); + if (!value) { + VIR_FREE(keyword); + goto no_memory; + } + + if (keywordAlloc == keywordCount) { + if (VIR_REALLOC_N(keywords, keywordAlloc + 10) < 0 || + VIR_REALLOC_N(values, keywordAlloc + 10) < 0) { + VIR_FREE(keyword); + VIR_FREE(value); + goto no_memory; + } + keywordAlloc += 10; + } + + keywords[keywordCount] = keyword; + values[keywordCount] = value; + keywordCount++; + + start = endmark ? endmark + 1 : NULL; + } + + *retkeywords = keywords; + *retvalues = values; + + return keywordCount; + +no_memory: + virReportOOMError(conn); +error: + for (i = 0 ; i < keywordCount ; i++) { + VIR_FREE(keywords[i]); + VIR_FREE(values[i]); + } + VIR_FREE(keywords); + VIR_FREE(values); + return -1; +} + +/* + * Tries to parse new style QEMU -drive args. + * + * eg -drive file=/dev/HostVG/VirtData1,if=ide,index=1 + * + * Will fail if not using the 'index' keyword + */ +static virDomainDiskDefPtr +qemuParseCommandLineDisk(virConnectPtr conn, + const char *val) +{ + virDomainDiskDefPtr def = NULL; + char **keywords; + char **values; + int nkeywords; + int i; + int idx = -1; + + if ((nkeywords = qemuParseCommandLineKeywords(conn, val, + &keywords, + &values)) < 0) + return NULL; + + if (VIR_ALLOC(def) < 0) { + virReportOOMError(conn); + goto cleanup; + } + + def->bus = VIR_DOMAIN_DISK_BUS_IDE; + def->device = VIR_DOMAIN_DISK_DEVICE_DISK; + + for (i = 0 ; i < nkeywords ; i++) { + if (STREQ(keywords[i], "file")) { + if (values[i] && STRNEQ(values[i], "")) { + def->src = values[i]; + values[i] = NULL; + if (STRPREFIX(def->src, "/dev/")) + def->type = VIR_DOMAIN_DISK_TYPE_BLOCK; + else + def->type = VIR_DOMAIN_DISK_TYPE_FILE; + } else { + def->type = VIR_DOMAIN_DISK_TYPE_FILE; + } + } else if (STREQ(keywords[i], "if")) { + if (STREQ(values[i], "ide")) + def->bus = VIR_DOMAIN_DISK_BUS_IDE; + else if (STREQ(values[i], "scsi")) + def->bus = VIR_DOMAIN_DISK_BUS_SCSI; + else if (STREQ(values[i], "virtio")) + def->bus = VIR_DOMAIN_DISK_BUS_VIRTIO; + else if (STREQ(values[i], "xen")) + def->bus = VIR_DOMAIN_DISK_BUS_XEN; + } else if (STREQ(keywords[i], "media")) { + if (STREQ(values[i], "cdrom")) { + def->device = VIR_DOMAIN_DISK_DEVICE_CDROM; + def->readonly = 1; + } else if (STREQ(values[i], "floppy")) + def->device = VIR_DOMAIN_DISK_DEVICE_FLOPPY; + } else if (STREQ(keywords[i], "format")) { + def->driverName = strdup("qemu"); + if (!def->driverName) { + virDomainDiskDefFree(def); + def = NULL; + virReportOOMError(conn); + goto cleanup; + } + def->driverType = values[i]; + values[i] = NULL; + } else if (STREQ(keywords[i], "cache")) { + if (STREQ(values[i], "off") || + STREQ(values[i], "none")) + def->cachemode = VIR_DOMAIN_DISK_CACHE_DISABLE; + else if (STREQ(values[i], "writeback") || + STREQ(values[i], "on")) + def->cachemode = VIR_DOMAIN_DISK_CACHE_WRITEBACK; + else if (STREQ(values[i], "writethrough")) + def->cachemode = VIR_DOMAIN_DISK_CACHE_WRITETHRU; + } else if (STREQ(keywords[i], "index")) { + if (virStrToLong_i(values[i], NULL, 10, &idx) < 0) { + virDomainDiskDefFree(def); + def = NULL; + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot parse drive index '%s'"), val); + goto cleanup; + } + } + } + + if (!def->src && + def->device == VIR_DOMAIN_DISK_DEVICE_DISK) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("missing file parameter in drive '%s'"), val); + virDomainDiskDefFree(def); + def = NULL; + goto cleanup; + } + if (idx == -1) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("missing index parameter in drive '%s'"), val); + virDomainDiskDefFree(def); + def = NULL; + goto cleanup; + } + + if (def->bus == VIR_DOMAIN_DISK_BUS_IDE) { + def->dst = strdup("hda"); + } else if (def->bus == VIR_DOMAIN_DISK_BUS_SCSI) { + def->dst = strdup("sda"); + } else if (def->bus == VIR_DOMAIN_DISK_BUS_VIRTIO) { + def->dst = strdup("vda"); + } else if (def->bus == VIR_DOMAIN_DISK_BUS_XEN) { + def->dst = strdup("xvda"); + } else { + def->dst = strdup("hda"); + } + + if (!def->dst) { + virDomainDiskDefFree(def); + def = NULL; + virReportOOMError(conn); + goto cleanup; + } + if (STREQ(def->dst, "xvda")) + def->dst[3] = 'a' + idx; + else + def->dst[2] = 'a' + idx; + +cleanup: + for (i = 0 ; i < nkeywords ; i++) { + VIR_FREE(keywords[i]); + VIR_FREE(values[i]); + } + VIR_FREE(keywords); + VIR_FREE(values); + return def; +} + +/* + * Tries to find a NIC definition matching a vlan we want + */ +static const char * +qemuFindNICForVLAN(virConnectPtr conn, + int nnics, + const char **nics, + int wantvlan) +{ + int i; + for (i = 0 ; i < nnics ; i++) { + int gotvlan; + const char *tmp = strstr(nics[i], "vlan="); + char *end; + if (tmp) + tmp += strlen("vlan="); + + if (virStrToLong_i(tmp, &end, 10, &gotvlan) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot parse NIC vlan in '%s'"), nics[i]); + return NULL; + } + + if (gotvlan == wantvlan) + return nics[i]; + } + + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot find NIC definition for vlan %d"), wantvlan); + return NULL; +} + + +/* + * Tries to parse a QEMU -net backend argument. Gets given + * a list of all known -net frontend arguments to try and + * match up against. Horribly complicated stuff + */ +static virDomainNetDefPtr +qemuParseCommandLineNet(virConnectPtr conn, + const char *val, + int nnics, + const char **nics) +{ + virDomainNetDefPtr def = NULL; + char **keywords; + char **values; + int nkeywords; + const char *nic; + int wantvlan = 0; + const char *tmp; + int i; + + tmp = strchr(val, ','); + if (!tmp) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract NIC type from '%s'"), val); + return NULL; + } + + if ((nkeywords = qemuParseCommandLineKeywords(conn, + tmp+1, + &keywords, + &values)) < 0) + return NULL; + + if (VIR_ALLOC(def) < 0) { + virReportOOMError(conn); + goto cleanup; + } + + /* 'tap' could turn into libvirt type=ethernet, type=bridge or + * type=network, but we can't tell, so use the generic config */ + if (STRPREFIX(val, "tap,")) + def->type = VIR_DOMAIN_NET_TYPE_ETHERNET; + else if (STRPREFIX(val, "socket")) + def->type = VIR_DOMAIN_NET_TYPE_CLIENT; + else if (STRPREFIX(val, "user")) + def->type = VIR_DOMAIN_NET_TYPE_USER; + else + def->type = VIR_DOMAIN_NET_TYPE_ETHERNET; + + for (i = 0 ; i < nkeywords ; i++) { + if (STREQ(keywords[i], "vlan")) { + if (virStrToLong_i(values[i], NULL, 10, &wantvlan) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot parse vlan in '%s'"), val); + virDomainNetDefFree(def); + def = NULL; + goto cleanup; + } + } else if (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET && + STREQ(keywords[i], "script") && STRNEQ(values[i], "")) { + def->data.ethernet.script = values[i]; + values[i] = NULL; + } else if (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET && + STREQ(keywords[i], "ifname")) { + def->ifname = values[i]; + values[i] = NULL; + } + } + + + /* Done parsing the nic backend. Now to try and find corresponding + * frontend, based off vlan number. NB this assumes a 1-1 mapping + */ + + nic = qemuFindNICForVLAN(conn, nnics, nics, wantvlan); + if (!nic) { + virDomainNetDefFree(def); + def = NULL; + goto cleanup; + } + + if (!STRPREFIX(nic, "nic,")) { + virDomainNetDefFree(def); + def = NULL; + goto cleanup; + } + + for (i = 0 ; i < nkeywords ; i++) { + VIR_FREE(keywords[i]); + VIR_FREE(values[i]); + } + VIR_FREE(keywords); + VIR_FREE(values); + + if ((nkeywords = qemuParseCommandLineKeywords(conn, + nic + strlen("nic,"), + &keywords, + &values)) < 0) { + virDomainNetDefFree(def); + def = NULL; + goto cleanup; + } + + for (i = 0 ; i < nkeywords ; i++) { + if (STREQ(keywords[i], "macaddr")) { + virParseMacAddr(values[i], def->mac); + } else if (STREQ(keywords[i], "model")) { + def->model = values[i]; + values[i] = NULL; + } + } + +cleanup: + for (i = 0 ; i < nkeywords ; i++) { + VIR_FREE(keywords[i]); + VIR_FREE(values[i]); + } + VIR_FREE(keywords); + VIR_FREE(values); + return def; +} + + +/* + * Tries to parse a QEMU PCI device + */ +static virDomainHostdevDefPtr +qemuParseCommandLinePCI(virConnectPtr conn, + const char *val) +{ + virDomainHostdevDefPtr def = NULL; + int bus = 0, slot = 0, func = 0; + const char *start; + char *end; + + if (!STRPREFIX(val, "host=")) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("unknown PCI device syntax '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + + start = val + strlen("host="); + if (virStrToLong_i(start, &end, 16, &bus) < 0 || !end || *end != ':') { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device bus '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + start = end + 1; + if (virStrToLong_i(start, &end, 16, &slot) < 0 || !end || *end != '.') { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device slot '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + start = end + 1; + if (virStrToLong_i(start, NULL, 16, &func) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device function '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + + if (VIR_ALLOC(def) < 0) { + virReportOOMError(conn); + goto cleanup; + } + + def->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS; + def->managed = 1; + def->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI; + def->source.subsys.u.pci.bus = bus; + def->source.subsys.u.pci.slot = slot; + def->source.subsys.u.pci.function = func; + +cleanup: + return def; +} + + +/* + * Tries to parse a QEMU USB device + */ +static virDomainHostdevDefPtr +qemuParseCommandLineUSB(virConnectPtr conn, + const char *val) +{ + virDomainHostdevDefPtr def = NULL; + int first = 0, second = 0; + const char *start; + char *end; + + if (!STRPREFIX(val, "host:")) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("unknown PCI device syntax '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + + start = val + strlen("host:"); + if (strchr(start, ':')) { + if (virStrToLong_i(start, &end, 16, &first) < 0 || !end || *end != ':') { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract USB device vendor '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + start = end + 1; + if (virStrToLong_i(start, NULL, 16, &second) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device product '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + } else { + if (virStrToLong_i(start, &end, 10, &first) < 0 || !end || *end != '.') { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device bus '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + start = end + 1; + if (virStrToLong_i(start, NULL, 10, &second) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot extract PCI device address '%s'"), val); + VIR_FREE(def); + goto cleanup; + } + } + + if (VIR_ALLOC(def) < 0) { + virReportOOMError(conn); + goto cleanup; + } + + def->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS; + def->managed = 0; + def->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB; + if (*end == '.') { + def->source.subsys.u.usb.bus = first; + def->source.subsys.u.usb.device = second; + } else { + def->source.subsys.u.usb.vendor = first; + def->source.subsys.u.usb.product = second; + } + +cleanup: + return def; +} + + +/* + * Tries to parse a QEMU serial/parallel device + */ +static virDomainChrDefPtr +qemuParseCommandLineChr(virConnectPtr conn, + const char *val) +{ + virDomainChrDefPtr def; + + if (VIR_ALLOC(def) < 0) + goto no_memory; + + if (STREQ(val, "null")) { + def->type = VIR_DOMAIN_CHR_TYPE_NULL; + } else if (STREQ(val, "vc")) { + def->type = VIR_DOMAIN_CHR_TYPE_VC; + } else if (STREQ(val, "pty")) { + def->type = VIR_DOMAIN_CHR_TYPE_PTY; + } else if (STRPREFIX(val, "file:")) { + def->type = VIR_DOMAIN_CHR_TYPE_FILE; + def->data.file.path = strdup(val+strlen("file:")); + if (!def->data.file.path) + goto no_memory; + } else if (STRPREFIX(val, "pipe:")) { + def->type = VIR_DOMAIN_CHR_TYPE_PIPE; + def->data.file.path = strdup(val+strlen("pipe:")); + if (!def->data.file.path) + goto no_memory; + } else if (STREQ(val, "stdio")) { + def->type = VIR_DOMAIN_CHR_TYPE_STDIO; + } else if (STRPREFIX(val, "udp:")) { + const char *svc1, *host2, *svc2; + def->type = VIR_DOMAIN_CHR_TYPE_UDP; + val += strlen("udp:"); + svc1 = strchr(val, ':'); + host2 = svc1 ? strchr(svc1, '@') : NULL; + svc2 = host2 ? strchr(host2, ':') : NULL; + + if (svc1) + def->data.udp.connectHost = strndup(val, svc1-val); + else + def->data.udp.connectHost = strdup(val); + if (svc1) { + svc1++; + if (host2) + def->data.udp.connectService = strndup(svc1, host2-svc1); + else + def->data.udp.connectService = strdup(svc1); + } + + if (host2) { + host2++; + if (svc2) + def->data.udp.bindHost = strndup(host2, svc2-host2); + else + def->data.udp.bindHost = strdup(host2); + } + if (svc2) { + svc2++; + def->data.udp.bindService = strdup(svc2); + } + } else if (STRPREFIX(val, "tcp:") || + STRPREFIX(val, "telnet:")) { + const char *opt, *svc; + def->type = VIR_DOMAIN_CHR_TYPE_TCP; + if (STRPREFIX(val, "tcp:")) { + val += strlen("tcp:"); + } else { + val += strlen("telnet:"); + def->data.tcp.protocol = VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET; + } + svc = strchr(val, ':'); + if (!svc) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot find port number in character device %s"), val); + goto error; + } + opt = strchr(svc, ','); + if (opt && strstr(opt, "server")) + def->data.tcp.listen = 1; + + def->data.tcp.host = strndup(val, svc-val); + svc++; + if (opt) { + def->data.tcp.service = strndup(svc, opt-svc); + } else { + def->data.tcp.service = strdup(svc); + } + } else if (STRPREFIX(val, "unix:")) { + const char *opt; + val += strlen("unix:"); + opt = strchr(val, ','); + def->type = VIR_DOMAIN_CHR_TYPE_UNIX; + if (opt) { + if (strstr(opt, "listen")) + def->data.nix.listen = 1; + def->data.nix.path = strndup(val, opt-val); + } else { + def->data.nix.path = strdup(val); + } + if (!def->data.nix.path) + goto no_memory; + + } else if (STRPREFIX(val, "/dev")) { + def->type = VIR_DOMAIN_CHR_TYPE_DEV; + def->data.file.path = strdup(val); + if (!def->data.file.path) + goto no_memory; + } else { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("unknown character device syntax %s"), val); + goto error; + } + + return def; + +no_memory: + virReportOOMError(conn); +error: + virDomainChrDefFree(def); + return NULL; +} + +/* + * Analyse the env and argv settings and reconstruct a + * virDomainDefPtr representing these settings as closely + * as is practical. This is not an exact science.... + */ +virDomainDefPtr qemuParseCommandLine(virConnectPtr conn, + const char **progenv, + const char **progargv) +{ + virDomainDefPtr def; + int i; + int nographics = 0; + int fullscreen = 0; + char *path; + int nnics = 0; + const char **nics = NULL; + + if (!progargv[0]) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + "%s", _("no emulator path found")); + return NULL; + } + + if (VIR_ALLOC(def) < 0) + goto no_memory; + + def->id = -1; + def->memory = def->maxmem = 64 * 1024; + def->vcpus = 1; + def->features = (1 << VIR_DOMAIN_FEATURE_ACPI) + /*| (1 << VIR_DOMAIN_FEATURE_APIC)*/; + def->onReboot = VIR_DOMAIN_LIFECYCLE_RESTART; + def->onCrash = VIR_DOMAIN_LIFECYCLE_DESTROY; + def->onPoweroff = VIR_DOMAIN_LIFECYCLE_DESTROY; + def->virtType = VIR_DOMAIN_VIRT_QEMU; + if (!(def->emulator = strdup(progargv[0]))) + goto no_memory; + + if (strstr(def->emulator, "kvm")) { + def->virtType = VIR_DOMAIN_VIRT_KVM; + def->features |= (1 << VIR_DOMAIN_FEATURE_PAE); + } + + + if (strstr(def->emulator, "xenner")) { + def->virtType = VIR_DOMAIN_VIRT_KVM; + def->os.type = strdup("xen"); + } else { + def->os.type = strdup("hvm"); + } + if (!def->os.type) + goto no_memory; + + if (STRPREFIX(def->emulator, "qemu")) + path = def->emulator; + else + path = strstr(def->emulator, "qemu"); + if (path && + STRPREFIX(path, "qemu-system-")) + def->os.arch = strdup(path + strlen("qemu-system-")); + else + def->os.arch = strdup("i686"); + if (!def->os.arch) + goto no_memory; + +#define WANT_VALUE() \ + const char *val = progargv[++i]; \ + if (!val) { \ + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, \ + _("missing value for %s argument"), arg); \ + goto error; \ + } + + /* One initial loop to get list of NICs, so we + * can correlate them later */ + for (i = 1 ; progargv[i] ; i++) { + const char *arg = progargv[i]; + /* Make sure we have a single - for all options to + simplify next logic */ + if (STRPREFIX(arg, "--")) + arg++; + + if (STREQ(arg, "-net")) { + WANT_VALUE(); + if (STRPREFIX(val, "nic")) { + if (VIR_REALLOC_N(nics, nnics+1) < 0) + goto no_memory; + nics[nnics++] = val; + } + } + } + + /* Now the real processing loop */ + for (i = 1 ; progargv[i] ; i++) { + const char *arg = progargv[i]; + /* Make sure we have a single - for all options to + simplify next logic */ + if (STRPREFIX(arg, "--")) + arg++; + + if (STREQ(arg, "-vnc")) { + virDomainGraphicsDefPtr vnc; + char *tmp; + WANT_VALUE(); + if (VIR_ALLOC(vnc) < 0) + goto no_memory; + vnc->type = VIR_DOMAIN_GRAPHICS_TYPE_VNC; + + tmp = strchr(val, ':'); + if (tmp) { + char *opts; + if (virStrToLong_i(tmp+1, &opts, 10, &vnc->data.vnc.port) < 0) { + VIR_FREE(vnc); + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, \ + _("cannot parse VNC port '%s'"), tmp+1); + goto error; + } + vnc->data.vnc.listenAddr = strndup(val, tmp-val); + if (!vnc->data.vnc.listenAddr) { + VIR_FREE(vnc); + goto no_memory; + } + vnc->data.vnc.port += 5900; + vnc->data.vnc.autoport = 0; + } else { + vnc->data.vnc.autoport = 1; + } + + if (VIR_REALLOC_N(def->graphics, def->ngraphics+1) < 0) { + virDomainGraphicsDefFree(vnc); + goto no_memory; + } + def->graphics[def->ngraphics++] = vnc; + } else if (STREQ(arg, "-m")) { + int mem; + WANT_VALUE(); + if (virStrToLong_i(val, NULL, 10, &mem) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, \ + _("cannot parse memory level '%s'"), val); + goto error; + } + def->memory = def->maxmem = mem * 1024; + } else if (STREQ(arg, "-smp")) { + int vcpus; + WANT_VALUE(); + if (virStrToLong_i(val, NULL, 10, &vcpus) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, \ + _("cannot parse CPU count '%s'"), val); + goto error; + } + def->vcpus = vcpus; + } else if (STREQ(arg, "-uuid")) { + WANT_VALUE(); + if (virUUIDParse(val, def->uuid) < 0) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, \ + _("cannot parse UUID '%s'"), val); + goto error; + } + } else if (STRPREFIX(arg, "-hd") || + STRPREFIX(arg, "-sd") || + STRPREFIX(arg, "-fd") || + STREQ(arg, "-cdrom")) { + WANT_VALUE(); + virDomainDiskDefPtr disk; + if (VIR_ALLOC(disk) < 0) + goto no_memory; + + if (STRPREFIX(val, "/dev/")) + disk->type = VIR_DOMAIN_DISK_TYPE_BLOCK; + else + disk->type = VIR_DOMAIN_DISK_TYPE_FILE; + if (STREQ(arg, "-cdrom")) { + disk->device = VIR_DOMAIN_DISK_DEVICE_CDROM; + disk->dst = strdup("hdc"); + disk->readonly = 1; + } else { + if (STRPREFIX(arg, "-fd")) { + disk->device = VIR_DOMAIN_DISK_DEVICE_FLOPPY; + disk->bus = VIR_DOMAIN_DISK_BUS_FDC; + } else { + disk->device = VIR_DOMAIN_DISK_DEVICE_DISK; + if (STRPREFIX(arg, "-hd")) + disk->bus = VIR_DOMAIN_DISK_BUS_IDE; + else + disk->bus = VIR_DOMAIN_DISK_BUS_SCSI; + } + disk->dst = strdup(arg + 1); + } + disk->src = strdup(val); + if (!disk->src || + !disk->dst) { + virDomainDiskDefFree(disk); + goto no_memory; + } + + if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) { + virDomainDiskDefFree(disk); + goto no_memory; + } + def->disks[def->ndisks++] = disk; + } else if (STREQ(arg, "-no-acpi")) { + def->features &= ~(1 << VIR_DOMAIN_FEATURE_ACPI); + } else if (STREQ(arg, "-no-reboot")) { + def->onReboot = VIR_DOMAIN_LIFECYCLE_DESTROY; + } else if (STREQ(arg, "-no-kvm")) { + def->virtType = VIR_DOMAIN_VIRT_QEMU; + } else if (STREQ(arg, "-nographic")) { + nographics = 1; + } else if (STREQ(arg, "-full-screen")) { + fullscreen = 1; + } else if (STREQ(arg, "-localtime")) { + def->localtime = 1; + } else if (STREQ(arg, "-kernel")) { + WANT_VALUE(); + if (!(def->os.kernel = strdup(val))) + goto no_memory; + } else if (STREQ(arg, "-initrd")) { + WANT_VALUE(); + if (!(def->os.initrd = strdup(val))) + goto no_memory; + } else if (STREQ(arg, "-append")) { + WANT_VALUE(); + if (!(def->os.cmdline = strdup(val))) + goto no_memory; + } else if (STREQ(arg, "-boot")) { + int n, b = 0; + WANT_VALUE(); + for (n = 0 ; val[n] && b < VIR_DOMAIN_BOOT_LAST ; n++) { + if (val[n] == 'a') + def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_FLOPPY; + else if (val[n] == 'c') + def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_DISK; + else if (val[n] == 'd') + def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_CDROM; + else if (val[n] == 'n') + def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_NET; + } + def->os.nBootDevs = b; + } else if (STREQ(arg, "-name")) { + WANT_VALUE(); + if (!(def->name = strdup(val))) + goto no_memory; + } else if (STREQ(arg, "-M")) { + WANT_VALUE(); + if (!(def->os.machine = strdup(val))) + goto no_memory; + } else if (STREQ(arg, "-serial")) { + WANT_VALUE(); + if (STRNEQ(val, "none")) { + virDomainChrDefPtr chr; + if (!(chr = qemuParseCommandLineChr(conn, val))) + goto error; + if (VIR_REALLOC_N(def->serials, def->nserials+1) < 0) { + virDomainChrDefFree(chr); + goto no_memory; + } + chr->dstPort = def->nserials; + def->serials[def->nserials++] = chr; + } + } else if (STREQ(arg, "-parallel")) { + WANT_VALUE(); + if (STRNEQ(val, "none")) { + virDomainChrDefPtr chr; + if (!(chr = qemuParseCommandLineChr(conn, val))) + goto error; + if (VIR_REALLOC_N(def->parallels, def->nparallels+1) < 0) { + virDomainChrDefFree(chr); + goto no_memory; + } + chr->dstPort = def->nparallels; + def->parallels[def->nparallels++] = chr; + } + } else if (STREQ(arg, "-usbdevice")) { + WANT_VALUE(); + if (STREQ(val, "tablet") || + STREQ(val, "mouse")) { + virDomainInputDefPtr input; + if (VIR_ALLOC(input) < 0) + goto no_memory; + input->bus = VIR_DOMAIN_INPUT_BUS_USB; + if (STREQ(val, "tablet")) + input->type = VIR_DOMAIN_INPUT_TYPE_TABLET; + else + input->type = VIR_DOMAIN_INPUT_TYPE_MOUSE; + if (VIR_REALLOC_N(def->inputs, def->ninputs+1) < 0) { + virDomainInputDefFree(input); + goto no_memory; + } + def->inputs[def->ninputs++] = input; + } else if (STRPREFIX(val, "disk:")) { + virDomainDiskDefPtr disk; + if (VIR_ALLOC(disk) < 0) + goto no_memory; + disk->src = strdup(val + strlen("disk:")); + if (!disk->src) { + virDomainDiskDefFree(disk); + goto no_memory; + } + if (STRPREFIX(disk->src, "/dev/")) + disk->type = VIR_DOMAIN_DISK_TYPE_BLOCK; + else + disk->type = VIR_DOMAIN_DISK_TYPE_FILE; + disk->device = VIR_DOMAIN_DISK_DEVICE_DISK; + disk->bus = VIR_DOMAIN_DISK_BUS_USB; + if (!(disk->dst = strdup("sda"))) { + virDomainDiskDefFree(disk); + goto no_memory; + } + if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) { + virDomainDiskDefFree(disk); + goto no_memory; + } + def->disks[def->ndisks++] = disk; + } else { + virDomainHostdevDefPtr hostdev; + if (!(hostdev = qemuParseCommandLineUSB(conn, val))) + goto error; + if (VIR_REALLOC_N(def->hostdevs, def->nhostdevs+1) < 0) { + virDomainHostdevDefFree(hostdev); + goto no_memory; + } + def->hostdevs[def->nhostdevs++] = hostdev; + } + } else if (STREQ(arg, "-net")) { + WANT_VALUE(); + if (!STRPREFIX(val, "nic") && STRNEQ(val, "none")) { + virDomainNetDefPtr net; + if (!(net = qemuParseCommandLineNet(conn, val, nnics, nics))) + goto error; + if (VIR_REALLOC_N(def->nets, def->nnets+1) < 0) { + virDomainNetDefFree(net); + goto no_memory; + } + def->nets[def->nnets++] = net; + } + } else if (STREQ(arg, "-drive")) { + virDomainDiskDefPtr disk; + WANT_VALUE(); + if (!(disk = qemuParseCommandLineDisk(conn, val))) + goto error; + if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) { + virDomainDiskDefFree(disk); + goto no_memory; + } + def->disks[def->ndisks++] = disk; + } else if (STREQ(arg, "-pcidevice")) { + virDomainHostdevDefPtr hostdev; + WANT_VALUE(); + if (!(hostdev = qemuParseCommandLinePCI(conn, val))) + goto error; + if (VIR_REALLOC_N(def->hostdevs, def->nhostdevs+1) < 0) { + virDomainHostdevDefFree(hostdev); + goto no_memory; + } + def->hostdevs[def->nhostdevs++] = hostdev; + } else if (STREQ(arg, "-soundhw")) { + const char *start; + WANT_VALUE(); + start = val; + while (start) { + const char *tmp = strchr(start, ','); + int type = -1; + if (STRPREFIX(start, "pcspk")) { + type = VIR_DOMAIN_SOUND_MODEL_PCSPK; + } else if (STRPREFIX(start, "sb16")) { + type = VIR_DOMAIN_SOUND_MODEL_SB16; + } else if (STRPREFIX(start, "es1370")) { + type = VIR_DOMAIN_SOUND_MODEL_ES1370; + } else if (STRPREFIX(start, "ac97")) { + type = VIR_DOMAIN_SOUND_MODEL_AC97; + } + + if (type != -1) { + virDomainSoundDefPtr snd; + if (VIR_ALLOC(snd) < 0) + goto no_memory; + snd->model = type; + if (VIR_REALLOC_N(def->sounds, def->nsounds+1) < 0) { + VIR_FREE(snd); + goto no_memory; + } + def->sounds[def->nsounds++] = snd; + } + + start = tmp ? tmp + 1 : NULL; + } + } else if (STREQ(arg, "-bootloader")) { + WANT_VALUE(); + def->os.bootloader = strdup(val); + if (!def->os.bootloader) + goto no_memory; + } else if (STREQ(arg, "-domid")) { + WANT_VALUE(); + /* ignore, generted on the fly */ + } else if (STREQ(arg, "-usb")) { + /* ignore, always added by libvirt */ + } else if (STREQ(arg, "-pidfile")) { + WANT_VALUE(); + /* ignore, used by libvirt as needed */ + } else if (STREQ(arg, "-incoming")) { + WANT_VALUE(); + /* ignore, used via restore/migrate APIs */ + } else if (STREQ(arg, "-monitor")) { + WANT_VALUE(); + /* ignore, used internally by libvirt */ + } else if (STREQ(arg, "-S")) { + /* ignore, always added by libvirt */ + } else { + VIR_WARN(_("unknown QEMU argument '%s' during conversion"), arg); +#if 0 + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("unknown argument '%s'"), arg); + goto error; +#endif + } + } + +#undef WANT_VALUE + + if (!nographics && def->ngraphics == 0) { + virDomainGraphicsDefPtr sdl; + const char *display = qemuFindEnv(progenv, "DISPLAY"); + const char *xauth = qemuFindEnv(progenv, "XAUTHORITY"); + if (VIR_ALLOC(sdl) < 0) + goto no_memory; + sdl->type = VIR_DOMAIN_GRAPHICS_TYPE_SDL; + sdl->data.sdl.fullscreen = fullscreen; + if (display && + !(sdl->data.sdl.display = strdup(display))) { + VIR_FREE(sdl); + goto no_memory; + } + if (xauth && + !(sdl->data.sdl.xauth = strdup(xauth))) { + VIR_FREE(sdl); + goto no_memory; + } + + if (VIR_REALLOC_N(def->graphics, def->ngraphics+1) < 0) { + virDomainGraphicsDefFree(sdl); + goto no_memory; + } + def->graphics[def->ngraphics++] = sdl; + } + + VIR_FREE(nics); + + if (!def->name) { + if (!(def->name = strdup("unnamed"))) + goto no_memory; + } + + return def; + +no_memory: + virReportOOMError(conn); +error: + virDomainDefFree(def); + VIR_FREE(nics); + return NULL; +} + + +virDomainDefPtr qemuParseCommandLineString(virConnectPtr conn, + const char *args) +{ + const char **progenv = NULL; + const char **progargv = NULL; + virDomainDefPtr def = NULL; + int i; + + if (qemuStringToArgvEnv(args, &progenv, &progargv) < 0) + goto cleanup; + + def = qemuParseCommandLine(conn, progenv, progargv); + +cleanup: + for (i = 0 ; progargv && progargv[i] ; i++) + VIR_FREE(progargv[i]); + VIR_FREE(progargv); + + for (i = 0 ; progenv && progenv[i] ; i++) + VIR_FREE(progenv[i]); + VIR_FREE(progenv); + + return def; +} + + /* Called from SAX on parsing errors in the XML. */ static void catchXMLError (void *ctx, const char *msg ATTRIBUTE_UNUSED, ...) diff -r 832729f8dd03 src/qemu_conf.h --- a/src/qemu_conf.h Tue May 19 18:43:30 2009 +0100 +++ b/src/qemu_conf.h Tue May 19 18:43:59 2009 +0100 @@ -1,5 +1,5 @@ /* - * config.h: VM configuration management + * qemu_conf.h: QEMU configuration management * * Copyright (C) 2006, 2007, 2009 Red Hat, Inc. * Copyright (C) 2006 Daniel P. Berrange @@ -135,6 +135,12 @@ int qemudBuildCommandLine int *ntapfds, const char *migrateFrom); +virDomainDefPtr qemuParseCommandLine(virConnectPtr conn, + const char **progenv, + const char **progargv); +virDomainDefPtr qemuParseCommandLineString(virConnectPtr conn, + const char *args); + const char *qemudVirtTypeToString (int type); qemudDomainStatusPtr qemudDomainStatusParseFile(virConnectPtr conn, virCapsPtr caps, diff -r 832729f8dd03 src/qemu_driver.c --- a/src/qemu_driver.c Tue May 19 18:43:30 2009 +0100 +++ b/src/qemu_driver.c Tue May 19 18:43:59 2009 +0100 @@ -3422,6 +3422,30 @@ cleanup: } +static char *qemuDomainXMLFromNative(virConnectPtr conn, + const char *format, + const char *config, + unsigned int flags ATTRIBUTE_UNUSED) { + virDomainDefPtr def = NULL; + char *xml = NULL; + + if (STRNEQ(format, QEMU_CONFIG_FORMAT_ARGV)) { + qemudReportError(conn, NULL, NULL, VIR_ERR_INVALID_ARG, + _("unsupported config type %s"), format); + goto cleanup; + } + + def = qemuParseCommandLineString(conn, config); + if (!def) + goto cleanup; + + xml = virDomainDefFormat(conn, def, VIR_DOMAIN_XML_INACTIVE); + +cleanup: + virDomainDefFree(def); + return xml; +} + static char *qemuDomainXMLToNative(virConnectPtr conn, const char *format, const char *xmlData, @@ -3438,6 +3462,8 @@ static char *qemuDomainXMLToNative(virCo char *ret = NULL; int i; + qemuDriverLock(driver); + if (STRNEQ(format, QEMU_CONFIG_FORMAT_ARGV)) { qemudReportError(conn, NULL, NULL, VIR_ERR_INVALID_ARG, _("unsupported config type %s"), format); @@ -3536,6 +3562,7 @@ static char *qemuDomainXMLToNative(virCo ret = virBufferContentAndReset(&buf); cleanup: + qemuDriverUnlock(driver); for (tmp = retargv ; tmp && *tmp ; tmp++) VIR_FREE(*tmp); VIR_FREE(retargv); @@ -5351,7 +5378,7 @@ static virDriver qemuDriver = { qemudDomainGetSecurityLabel, /* domainGetSecurityLabel */ qemudNodeGetSecurityModel, /* nodeGetSecurityModel */ qemudDomainDumpXML, /* domainDumpXML */ - NULL, /* domainXmlFromNative */ + qemuDomainXMLFromNative, /* domainXmlFromNative */ qemuDomainXMLToNative, /* domainXMLToNative */ qemudListDefinedDomains, /* listDefinedDomains */ qemudNumDefinedDomains, /* numOfDefinedDomains */ diff -r 832729f8dd03 src/vbox/vbox_tmpl.c --- a/src/vbox/vbox_tmpl.c Tue May 19 18:43:30 2009 +0100 +++ b/src/vbox/vbox_tmpl.c Tue May 19 18:43:59 2009 +0100 @@ -1878,7 +1878,7 @@ static char *vboxDomainDumpXML(virDomain if (audioController == AudioControllerType_SB16) { def->sounds[0]->model = VIR_DOMAIN_SOUND_MODEL_SB16; } else if (audioController == AudioControllerType_AC97) { - def->sounds[0]->model = VIR_DOMAIN_SOUND_MODEL_ES97; + def->sounds[0]->model = VIR_DOMAIN_SOUND_MODEL_AC97; } } else { VIR_FREE(def->sounds); @@ -2934,7 +2934,7 @@ static virDomainPtr vboxDomainDefineXML( if (NS_SUCCEEDED(rc)) { if (def->sounds[0]->model == VIR_DOMAIN_SOUND_MODEL_SB16) { audioAdapter->vtbl->SetAudioController(audioAdapter, AudioControllerType_SB16); - } else if (def->sounds[0]->model == VIR_DOMAIN_SOUND_MODEL_ES97) { + } else if (def->sounds[0]->model == VIR_DOMAIN_SOUND_MODEL_AC97) { audioAdapter->vtbl->SetAudioController(audioAdapter, AudioControllerType_AC97); } } -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
On Tue, May 19, 2009 at 06:44:13PM +0100, Daniel P. Berrange wrote:
On Wed, May 13, 2009 at 06:53:44PM +0200, Daniel Veillard wrote:
On Wed, May 13, 2009 at 03:40:54PM +0100, Daniel P. Berrange wrote:
This provides the QEMU driver implementation which is able to convert from QEMU argv into domain XML. This is alot of hard code, because we have to parse and interpret arbitrary QEMU args and had no existing code doing this. This is also actually the single most useful feature of this patchset, and the original motivation. With this available, it makes it very easy for people using QEMU to switch over to using libvirt
Here's an update with the VIR_REALLOCs in the loop changed to alloc in chunks of 10. Also fixes a few misc bugs in the conversions, and the style items pointed out last time.
Okay, thanks, ACK ! Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel@veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/
This patch adds some docs to the website demonstrating use of virsh for converting native config formats into domain XML and vica-veca for Xen and QEMU drvqemu.html | 109 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-- drvqemu.html.in | 96 ++++++++++++++++++++++++++++++++++++++++++++++++- drvxen.html | 104 ++++++++++++++++++++++++++++++++++++++++++++++++++++- drvxen.html.in | 89 ++++++++++++++++++++++++++++++++++++++++++++- 4 files changed, 390 insertions(+), 8 deletions(-) Daniel diff -r 0c8a291a5fbe docs/drvqemu.html --- a/docs/drvqemu.html Wed May 13 15:28:44 2009 +0100 +++ b/docs/drvqemu.html Wed May 13 15:30:56 2009 +0100 @@ -130,12 +130,28 @@ </div> <div id="content"> <h1>QEMU/KVM hypervisor driver</h1> + <ul><li> + <a href="#prereq">Deployment pre-requisites</a> + </li><li> + <a href="#uris">Connections to QEMU driver</a> + </li><li> + <a href="#imex">Import and export of libvirt domain XML configs</a> + <ul><li> + <a href="#xmlimport">Converting from QEMU args to domain XML</a> + </li><li> + <a href="#xmlexport">Converting from domain XML to QEMU args</a> + </li></ul> + </li><li> + <a href="#xmlconfig">Example domain XML config</a> + </li></ul> <p> The libvirt QEMU driver can manage any QEMU emulator from version 0.8.1 or later. It can also manage anything that provides the same QEMU command line syntax and monitor interaction. This includes KVM, and Xenner. </p> - <h2>Deployment pre-requisites</h2> + <h2> + <a name="prereq" id="prereq">Deployment pre-requisites</a> + </h2> <ul><li> <strong>QEMU emulators</strong>: The driver will probe <code>/usr/bin</code> for the presence of <code>qemu</code>, <code>qemu-system-x86_64</code>, @@ -153,7 +169,9 @@ node. If both are found, then Xen paravirtualized guests can be run using the KVM hardware acceleration. </li></ul> - <h2>Connections to QEMU driver</h2> + <h2> + <a name="uris" id="uris">Connections to QEMU driver</a> + </h2> <p> The libvirt QEMU driver is a multi-instance driver, providing a single system wide privileged driver (the "system" instance), and per-user @@ -171,6 +189,93 @@ qemu+ssh://root@example.com/system (remote access, SSH tunnelled) </pre> <h2> + <a name="imex" id="imex">Import and export of libvirt domain XML configs</a> + </h2> + <p>The QEMU driver currently supports a single native + config format known as <code>qemu-argv</code>. The data for this format + is expected to be a single line first a list of environment variables, + then the QEMu binary name, finally followed by the QEMU command line + arguments</p> + <h3> + <a name="xmlimport" id="xmlimport">Converting from QEMU args to domain XML</a> + </h3> + <p> + The <code>virsh domxml-from-native</code> provides a way to convert an + existing set of QEMU args into a guest description using libvirt Domain XML + that can then be used by libvirt. + </p> + <pre>$ cat > demo.args <<EOF +LC_ALL=C PATH=/bin HOME=/home/test USER=test \ +LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 \ +-nographic -monitor pty -no-acpi -boot c -hda \ +/dev/HostVG/QEMUGuest1 -net none -serial none \ +-parallel none -usb +EOF +$ virsh domxml-from-native qemu-argv demo.args +<domain type='qemu'> + <uuid>00000000-0000-0000-0000-000000000000</uuid> + <memory>219136</memory> + <currentMemory>219136</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + </devices> +</domain> + </pre> + <p>NB, don't include the literral \ in the args, put everything on one line</p> + <h3> + <a name="xmlexport" id="xmlexport">Converting from domain XML to QEMU args</a> + </h3> + <p> + The <code>virsh domxml-to-native</code> provides a way to convert a + guest description using libvirt Domain XML, into a set of QEMU args + that can be run manually. + </p> + <pre>$ cat > demo.xml <<EOF +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + </devices> +</domain> +EOF +$ virsh domxml-to-native qemu-argv demo.xml + LC_ALL=C PATH=/usr/bin:/bin HOME=/home/test \ + USER=test LOGNAME=test /usr/bin/qemu -S -M pc \ + -no-kqemu -m 214 -smp 1 -name QEMUGuest1 -nographic \ + -monitor pty -no-acpi -boot c -drive \ + file=/dev/HostVG/QEMUGuest1,if=ide,index=0 -net none \ + -serial none -parallel none -usb + </pre> + <h2> <a name="xmlconfig" id="xmlconfig">Example domain XML config</a> </h2> <h3>QEMU emulated guest on x86_64</h3> diff -r 0c8a291a5fbe docs/drvqemu.html.in --- a/docs/drvqemu.html.in Wed May 13 15:28:44 2009 +0100 +++ b/docs/drvqemu.html.in Wed May 13 15:30:56 2009 +0100 @@ -2,13 +2,15 @@ <body> <h1>QEMU/KVM hypervisor driver</h1> + <ul id="toc"></ul> + <p> The libvirt QEMU driver can manage any QEMU emulator from version 0.8.1 or later. It can also manage anything that provides the same QEMU command line syntax and monitor interaction. This includes KVM, and Xenner. </p> - <h2>Deployment pre-requisites</h2> + <h2><a name="prereq">Deployment pre-requisites</a></h2> <ul> <li> @@ -32,7 +34,7 @@ </li> </ul> - <h2>Connections to QEMU driver</h2> + <h2><a name="uris">Connections to QEMU driver</a></h2> <p> The libvirt QEMU driver is a multi-instance driver, providing a single @@ -52,6 +54,96 @@ qemu+ssh://root@example.com/system (remote access, SSH tunnelled) </pre> + <h2><a name="imex">Import and export of libvirt domain XML configs</a></h2> + + <p>The QEMU driver currently supports a single native + config format known as <code>qemu-argv</code>. The data for this format + is expected to be a single line first a list of environment variables, + then the QEMu binary name, finally followed by the QEMU command line + arguments</p> + + <h3><a name="xmlimport">Converting from QEMU args to domain XML</a></h3> + + <p> + The <code>virsh domxml-from-native</code> provides a way to convert an + existing set of QEMU args into a guest description using libvirt Domain XML + that can then be used by libvirt. + </p> + + <pre>$ cat > demo.args <<EOF +LC_ALL=C PATH=/bin HOME=/home/test USER=test \ +LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 \ +-nographic -monitor pty -no-acpi -boot c -hda \ +/dev/HostVG/QEMUGuest1 -net none -serial none \ +-parallel none -usb +EOF +$ virsh domxml-from-native qemu-argv demo.args +<domain type='qemu'> + <uuid>00000000-0000-0000-0000-000000000000</uuid> + <memory>219136</memory> + <currentMemory>219136</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + </devices> +</domain> + </pre> + + <p>NB, don't include the literral \ in the args, put everything on one line</p> + + <h3><a name="xmlexport">Converting from domain XML to QEMU args</a></h3> + + <p> + The <code>virsh domxml-to-native</code> provides a way to convert a + guest description using libvirt Domain XML, into a set of QEMU args + that can be run manually. + </p> + + <pre>$ cat > demo.xml <<EOF +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + </devices> +</domain> +EOF +$ virsh domxml-to-native qemu-argv demo.xml + LC_ALL=C PATH=/usr/bin:/bin HOME=/home/test \ + USER=test LOGNAME=test /usr/bin/qemu -S -M pc \ + -no-kqemu -m 214 -smp 1 -name QEMUGuest1 -nographic \ + -monitor pty -no-acpi -boot c -drive \ + file=/dev/HostVG/QEMUGuest1,if=ide,index=0 -net none \ + -serial none -parallel none -usb + </pre> + <h2><a name="xmlconfig">Example domain XML config</a></h2> <h3>QEMU emulated guest on x86_64</h3> diff -r 0c8a291a5fbe docs/drvxen.html --- a/docs/drvxen.html Wed May 13 15:28:44 2009 +0100 +++ b/docs/drvxen.html Wed May 13 15:30:56 2009 +0100 @@ -130,11 +130,27 @@ </div> <div id="content"> <h1>Xen hypervisor driver</h1> + <ul><li> + <a href="#prereq">Deployment pre-requisites</a> + </li><li> + <a href="#uri">Connections to Xen driver</a> + </li><li> + <a href="#imex">Import and export of libvirt domain XML configs</a> + <ul><li> + <a href="#xmlimport">Converting from XM config files to domain XML</a> + </li><li> + <a href="#xmlexport">Converting from domain XML to XM config files</a> + </li></ul> + </li><li> + <a href="#xmlconfig">Example domain XML config</a> + </li></ul> <p> The libvirt Xen driver provides the ability to manage virtual machines on any Xen release from 3.0.1 onwards. </p> - <h2>Deployment pre-requisites</h2> + <h2> + <a name="prereq" id="prereq">Deployment pre-requisites</a> + </h2> <p> The libvirt Xen driver uses a combination of channels to manage Xen virtual machines. @@ -163,7 +179,9 @@ the <code>/etc/xen</code> directory. It is important not to place any other non-config files in this directory. </li></ul> - <h2>Connections to Xen driver</h2> + <h2> + <a name="uri" id="uri">Connections to Xen driver</a> + </h2> <p> The libvirt Xen driver is a single-instance privileged driver, with a driver name of 'xen'. Some example conection URIs for @@ -177,6 +195,88 @@ xen+ssh://root@example.com/ (remote access, SSH tunnelled) </pre> <h2> + <a name="imex" id="imex">Import and export of libvirt domain XML configs</a> + </h2> + <p>The Xen driver currently supports two native + config formats. The first known as <code>xen-xm</code> is the format + used by the XM tool for files in <code>/etc/xen</code>. The second + known as <code>xen-sxpr</code>, is the format used for interacting + with the XenD's legacy HTTP RPC service.</p> + <h3> + <a name="xmlimport" id="xmlimport">Converting from XM config files to domain XML</a> + </h3> + <p> + The <code>virsh domxml-from-native</code> provides a way to convert an + existing set of XM config files into a guest description using libvirt Domain XML + that can then be used by libvirt. + </p> + <pre>$ virsh -c xen:/// domxml-from-native xen-xm rhel5.cfg +<domain type='xen'> + <name>rhel5pv</name> + <uuid>8f07fe28-753f-2729-d76d-bdbd892f949a</uuid> + <memory>2560000</memory> + <currentMemory>307200</currentMemory> + <vcpu>4</vcpu> + <bootloader>/usr/bin/pygrub</bootloader> + <os> + <type arch='x86_64' machine='xenpv'>linux</type> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>restart</on_crash> + <devices> + <disk type='file' device='disk'> + <driver name='tap' type='aio'/> + <source file='/var/lib/xen/images/rhel5pv.img'/> + <target dev='xvda' bus='xen'/> + </disk> + <disk type='file' device='disk'> + <driver name='tap' type='qcow'/> + <source file='/root/qcow1-xen.img'/> + <target dev='xvdd' bus='xen'/> + </disk> + <interface type='bridge'> + <mac address='00:16:3e:60:36:ba'/> + <source bridge='xenbr0'/> + </interface> + <console type='pty'> + <target port='0'/> + </console> + <input type='mouse' bus='xen'/> + <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'/> + </devices> +</domain> + </pre> + <h3> + <a name="xmlexport" id="xmlexport">Converting from domain XML to XM config files</a> + </h3> + <p> + The <code>virsh domxml-to-native</code> provides a way to convert a + guest description using libvirt Domain XML, into the XM config file + format. + </p> + <pre># virsh -c xen:/// domxml-to-native xen-xm rhel5pv.xml +name = "rhel5pv" +uuid = "8f07fe28-753f-2729-d76d-bdbd892f949a" +maxmem = 2500 +memory = 300 +vcpus = 4 +bootloader = "/usr/bin/pygrub" +kernel = "/var/lib/xen/boot_kernel.0YK-cS" +ramdisk = "/var/lib/xen/boot_ramdisk.vWgrxK" +extra = "ro root=/dev/VolGroup00/LogVol00 rhgb quiet" +on_poweroff = "destroy" +on_reboot = "restart" +on_crash = "restart" +sdl = 0 +vnc = 1 +vncunused = 1 +vnclisten = "0.0.0.0" +disk = [ "tap:aio:/var/lib/xen/images/rhel5pv.img,xvda,w", "tap:qcow:/root/qcow1-xen.img,xvdd,w" ] +vif = [ "mac=00:16:3e:60:36:ba,bridge=virbr0,script=vif-bridge,vifname=vif5.0" ] + </pre> + <h2> <a name="xmlconfig" id="xmlconfig">Example domain XML config</a> </h2> <p> diff -r 0c8a291a5fbe docs/drvxen.html.in --- a/docs/drvxen.html.in Wed May 13 15:28:44 2009 +0100 +++ b/docs/drvxen.html.in Wed May 13 15:30:56 2009 +0100 @@ -2,12 +2,14 @@ <body> <h1>Xen hypervisor driver</h1> + <ul id="toc"></ul> + <p> The libvirt Xen driver provides the ability to manage virtual machines on any Xen release from 3.0.1 onwards. </p> - <h2>Deployment pre-requisites</h2> + <h2><a name="prereq">Deployment pre-requisites</a></h2> <p> The libvirt Xen driver uses a combination of channels to manage Xen @@ -44,7 +46,7 @@ </li> </ul> - <h2>Connections to Xen driver</h2> + <h2><a name="uri">Connections to Xen driver</a></h2> <p> The libvirt Xen driver is a single-instance privileged driver, @@ -60,6 +62,89 @@ xen+ssh://root@example.com/ (remote access, SSH tunnelled) </pre> + <h2><a name="imex">Import and export of libvirt domain XML configs</a></h2> + + <p>The Xen driver currently supports two native + config formats. The first known as <code>xen-xm</code> is the format + used by the XM tool for files in <code>/etc/xen</code>. The second + known as <code>xen-sxpr</code>, is the format used for interacting + with the XenD's legacy HTTP RPC service.</p> + + <h3><a name="xmlimport">Converting from XM config files to domain XML</a></h3> + + <p> + The <code>virsh domxml-from-native</code> provides a way to convert an + existing set of XM config files into a guest description using libvirt Domain XML + that can then be used by libvirt. + </p> + + <pre>$ virsh -c xen:/// domxml-from-native xen-xm rhel5.cfg +<domain type='xen'> + <name>rhel5pv</name> + <uuid>8f07fe28-753f-2729-d76d-bdbd892f949a</uuid> + <memory>2560000</memory> + <currentMemory>307200</currentMemory> + <vcpu>4</vcpu> + <bootloader>/usr/bin/pygrub</bootloader> + <os> + <type arch='x86_64' machine='xenpv'>linux</type> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>restart</on_crash> + <devices> + <disk type='file' device='disk'> + <driver name='tap' type='aio'/> + <source file='/var/lib/xen/images/rhel5pv.img'/> + <target dev='xvda' bus='xen'/> + </disk> + <disk type='file' device='disk'> + <driver name='tap' type='qcow'/> + <source file='/root/qcow1-xen.img'/> + <target dev='xvdd' bus='xen'/> + </disk> + <interface type='bridge'> + <mac address='00:16:3e:60:36:ba'/> + <source bridge='xenbr0'/> + </interface> + <console type='pty'> + <target port='0'/> + </console> + <input type='mouse' bus='xen'/> + <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'/> + </devices> +</domain> + </pre> + + <h3><a name="xmlexport">Converting from domain XML to XM config files</a></h3> + + <p> + The <code>virsh domxml-to-native</code> provides a way to convert a + guest description using libvirt Domain XML, into the XM config file + format. + </p> + + <pre># virsh -c xen:/// domxml-to-native xen-xm rhel5pv.xml +name = "rhel5pv" +uuid = "8f07fe28-753f-2729-d76d-bdbd892f949a" +maxmem = 2500 +memory = 300 +vcpus = 4 +bootloader = "/usr/bin/pygrub" +kernel = "/var/lib/xen/boot_kernel.0YK-cS" +ramdisk = "/var/lib/xen/boot_ramdisk.vWgrxK" +extra = "ro root=/dev/VolGroup00/LogVol00 rhgb quiet" +on_poweroff = "destroy" +on_reboot = "restart" +on_crash = "restart" +sdl = 0 +vnc = 1 +vncunused = 1 +vnclisten = "0.0.0.0" +disk = [ "tap:aio:/var/lib/xen/images/rhel5pv.img,xvda,w", "tap:qcow:/root/qcow1-xen.img,xvdd,w" ] +vif = [ "mac=00:16:3e:60:36:ba,bridge=virbr0,script=vif-bridge,vifname=vif5.0" ] + </pre> <h2><a name="xmlconfig">Example domain XML config</a></h2> -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
On Wed, May 13, 2009 at 03:41:49PM +0100, Daniel P. Berrange wrote:
This patch adds some docs to the website demonstrating use of virsh for converting native config formats into domain XML and vica-veca for Xen and QEMU
ACK, reading HTML is hard anyway and typo checking is easier once commited. Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel@veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/
participants (3)
-
Cole Robinson -
Daniel P. Berrange -
Daniel Veillard