Introduce virt-xml into NIC update API

KKoukiou · Nov 10, 2021 · 09624ef · 09624ef
1 parent ff12f8c
commit 09624ef
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Showing 4 changed files with 35 additions and 142 deletions.
diff --git a/src/components/vm/nics/nicEdit.jsx b/src/components/vm/nics/nicEdit.jsx
@@ -116,10 +116,8 @@ export class EditNICModal extends React.Component {
         const { vm, network } = this.props;
 
         domainChangeInterfaceSettings({
-            name: vm.name,
-            id: vm.id,
+            vmName: vm.name,
             connectionName: vm.connectionName,
-            hotplug: vm.state === 'running',
             persistent: vm.persistent,
             macAddress: network.mac,
             newMacAddress: this.state.networkMac,

diff --git a/src/components/vm/nics/vmNicsCard.jsx b/src/components/vm/nics/vmNicsCard.jsx
@@ -26,7 +26,7 @@ import AddNIC from './nicAdd.jsx';
 import { EditNICModal } from './nicEdit.jsx';
 import WarningInactive from '../../common/warningInactive.jsx';
 import './nic.css';
-import { domainChangeInterfaceState, domainDetachIface, domainInterfaceAddresses, domainGet } from '../../../libvirtApi/domain.js';
+import { domainChangeInterfaceSettings, domainDetachIface, domainInterfaceAddresses, domainGet } from '../../../libvirtApi/domain.js';
 import { ListingTable } from "cockpit-components-table.jsx";
 import { DeleteResourceButton, DeleteResourceModal } from '../../common/deleteResource.jsx';
 
@@ -210,7 +210,7 @@ export class VmNetworkTab extends React.Component {
             return (e) => {
                 e.stopPropagation();
                 if (network.mac) {
-                    domainChangeInterfaceState({ name: vm.name, id: vm.id, connectionName: vm.connectionName, networkMac: network.mac, state: network.state === 'up' ? 'down' : 'up' })
+                    domainChangeInterfaceSettings({ vmName: vm.name, connectionName: vm.connectionName, macAddress: network.mac, state: network.state === 'up' ? 'down' : 'up', hotplug: vm.state === "running" })
                             .then(() => domainGet({ connectionName: vm.connectionName, id:vm.id, name: vm.name }))
                             .catch(ex => {
                                 onAddErrorNotification({

diff --git a/src/libvirt-xml-update.js b/src/libvirt-xml-update.js
@@ -1,5 +1,5 @@
 import { getDoc, getSingleOptionalElem } from './libvirt-xml-parse.js';
-import { getNextAvailableTarget, logDebug } from './helpers.js';
+import { getNextAvailableTarget } from './helpers.js';
 
 export function updateDisk({ domXml, diskTarget, readonly, shareable, busType, existingTargets, cache }) {
     const s = new XMLSerializer();
@@ -245,87 +245,6 @@ export function updateBootOrder(domXml, devices) {
     return s.serializeToString(doc);
 }
 
-/**
- * Returns updated XML description of the network interface specified by mac address.
- * @param  {String} domXml      Domain XML description.
- * @param  {String} macAddress  MAC Address of the network interface we will update.
- * @param  {String} state       Desired state; one of up/down.
- * @return {String}             Updated XML description of the device we will update or null on error.
- */
-export function updateNetworkIface({ domXml, macAddress, newMacAddress, networkState, networkModelType, networkType, networkSource }) {
-    const parser = new DOMParser();
-    const xmlDoc = parser.parseFromString(domXml, "application/xml");
-
-    if (!xmlDoc) {
-        console.warn(`Can't parse dumpxml, input: "${domXml}"`);
-        return null;
-    }
-
-    const domainElem = xmlDoc.getElementsByTagName("domain")[0];
-    const devicesElem = domainElem.getElementsByTagName("devices")[0];
-    const interfaceElems = devicesElem.getElementsByTagName('interface');
-
-    if (interfaceElems) {
-        for (let i = 0; i < interfaceElems.length; i++) {
-            const interfaceElem = interfaceElems[i];
-            const macElem = getSingleOptionalElem(interfaceElem, 'mac');
-            if (macElem === undefined)
-                return null;
-            const mac = macElem.getAttribute('address');
-
-            if (mac !== macAddress)
-                continue;
-
-            if (networkState) {
-                let linkElem = getSingleOptionalElem(interfaceElem, 'link');
-                if (linkElem === undefined) {
-                    linkElem = xmlDoc.createElement('link');
-                    interfaceElem.appendChild(linkElem);
-                }
-                linkElem.setAttribute('state', networkState);
-            }
-
-            const typeChanged = networkType !== interfaceElem.getAttribute('type', networkType);
-            if (networkType) {
-                interfaceElem.setAttribute('type', networkType);
-            }
-
-            if (networkSource && networkType) {
-                let sourceElem = getSingleOptionalElem(interfaceElem, 'source');
-                // Source elements of different iface types might contain differently named attributes,
-                // so we delete whole element and create a new one
-                if (typeChanged && sourceElem) {
-                    sourceElem.remove();
-                    sourceElem = undefined;
-                }
-                if (!sourceElem) {
-                    sourceElem = xmlDoc.createElement("source");
-                    interfaceElem.appendChild(sourceElem);
-                }
-                if (networkType === 'network')
-                    sourceElem.setAttribute('network', networkSource);
-                else if (networkType === 'direct')
-                    sourceElem.setAttribute('dev', networkSource);
-                else if (networkType === 'bridge')
-                    sourceElem.setAttribute('bridge', networkSource);
-            }
-
-            if (networkModelType) {
-                const modelElem = getSingleOptionalElem(interfaceElem, 'model');
-                modelElem.setAttribute('type', networkModelType);
-            }
-
-            const returnXML = (new XMLSerializer()).serializeToString(interfaceElem);
-
-            logDebug(`updateNetworkIface: Updated XML: "${returnXML}"`);
-
-            return returnXML;
-        }
-    }
-    console.warn("Can't update network interface element in domXml");
-    return null;
-}
-
 /*
  * This function is used to define only offline attribute of memory.
  */

diff --git a/src/libvirtApi/domain.js b/src/libvirtApi/domain.js
@@ -67,7 +67,6 @@ import {
     updateBootOrder,
     updateDisk,
     updateMaxMemory,
-    updateNetworkIface,
 } from '../libvirt-xml-update.js';
 import { storagePoolRefresh } from './storagePool.js';
 import { snapshotGetAll } from './snapshot.js';
@@ -166,8 +165,7 @@ export function domainAttachIface({ connectionName, vmName, mac, permanent, hotp
 }
 
 export function domainChangeInterfaceSettings({
-    name,
-    id: objPath,
+    vmName,
     connectionName,
     hotplug,
     persistent,
@@ -176,46 +174,39 @@ export function domainChangeInterfaceSettings({
     networkType,
     networkSource,
     networkModel,
+    state,
 }) {
-    /*
-     * 0 -> VIR_DOMAIN_AFFECT_CURRENT
-     * 1 -> VIR_DOMAIN_AFFECT_LIVE
-     * 2 -> VIR_DOMAIN_AFFECT_CONFIG
-     */
-    let flags = Enum.VIR_DOMAIN_AFFECT_CURRENT;
-    flags |= Enum.VIR_DOMAIN_AFFECT_CONFIG;
-
-    if (newMacAddress && newMacAddress !== macAddress) {
-        return domainAttachIface({
-            connectionName,
-            hotplug,
-            vmName: name,
-            mac: newMacAddress,
-            permanent: persistent,
-            sourceType: networkType,
-            source: networkSource,
-            model: networkModel
-        })
-                .then(() => domainDetachIface({ connectionName, mac: macAddress, vmName: name, live: hotplug, persistent }));
+    const options = { err: "message" };
+    if (connectionName === "system")
+        options.superuser = "try";
+
+    let networkParams = "";
+    if (state) {
+        networkParams = `link.state=${state}`;
     } else {
-        // Error handling inside the modal dialog this function is called
-        return call(connectionName, objPath, 'org.libvirt.Domain', 'GetXMLDesc', [Enum.VIR_DOMAIN_XML_INACTIVE], { timeout, type: 'u' })
-                .then(domXml => {
-                    const updatedXml = updateNetworkIface({
-                        domXml: domXml[0],
-                        macAddress,
-                        newMacAddress,
-                        networkType,
-                        networkSource,
-                        networkModelType: networkModel
-                    });
-                    if (!updatedXml) {
-                        return Promise.reject(new Error("VM CHANGE_NETWORK_SETTINGS action failed: updated device XML couldn't not be generated"));
-                    } else {
-                        return call(connectionName, objPath, 'org.libvirt.Domain', 'UpdateDevice', [updatedXml, flags], { timeout, type: 'su' });
-                    }
-                });
+        if (newMacAddress)
+            networkParams += `mac=${newMacAddress},`;
+        if (networkType)
+            networkParams += `type=${networkType},`;
+        if (networkSource)
+            networkParams += `source=${networkSource},`;
+        if (networkModel)
+            networkParams += `model=${networkModel},`;
     }
+
+    const args = [
+        "virt-xml", "-c", `qemu:///${connectionName}`,
+        vmName, "--edit", `mac=${macAddress}`, "--network",
+        networkParams
+    ];
+
+    if (hotplug) {
+        args.push("--update");
+        if (!persistent)
+            args.push("--no-define");
+    }
+
+    return cockpit.spawn(args, options);
 }
 
 export function domainChangeAutostart ({
@@ -243,21 +234,6 @@ export function domainChangeBootOrder({
             });
 }
 
-export function domainChangeInterfaceState({
-    connectionName,
-    id: objPath,
-    name,
-    networkMac,
-    state,
-}) {
-    return call(connectionName, objPath, 'org.libvirt.Domain', 'GetXMLDesc', [0], { timeout, type: 'u' })
-            .then(domXml => {
-                const updatedXml = updateNetworkIface({ domXml: domXml[0], macAddress: networkMac, networkState: state });
-                // updateNetworkIface can fail but we 'll catch the exception from the API call itself that will error on null argument
-                return call(connectionName, objPath, 'org.libvirt.Domain', 'UpdateDevice', [updatedXml, Enum.VIR_DOMAIN_AFFECT_CURRENT], { timeout, type: 'su' });
-            });
-}
-
 export function domainCreate({
     connectionName,
     memorySize,