feat(xo-server): implement VUSB API

The previous implementation only considered version upgrades and did not take into account the installation of missing patches.

See zammad#21487
Introduced by 85ec261

@xen-orchestra/backups/RemoteAdapter.mjs

@@ -191,13 +191,14 @@ export class RemoteAdapter {
   // check if we will be allowed to merge a a vhd created in this adapter
   // with the vhd at path `path`
   async isMergeableParent(packedParentUid, path) {
-    return await Disposable.use(openVhd(this.handler, path), vhd => {
+    return await Disposable.use(VhdSynthetic.fromVhdChain(this.handler, path), vhd => {
       // this baseUuid is not linked with this vhd
       if (!vhd.footer.uuid.equals(packedParentUid)) {
         return false
       }
 
-      const isVhdDirectory = vhd instanceof VhdDirectory
+      // check if all the chain is composed of vhd directory
+      const isVhdDirectory = vhd.checkVhdsClass(VhdDirectory)
       return isVhdDirectory
         ? this.useVhdDirectory() && this.#getCompressionType() === vhd.compressionType
         : !this.useVhdDirectory()

@xen-orchestra/backups/_runners/_vmRunners/IncrementalRemote.mjs

@@ -2,6 +2,7 @@ import { asyncEach } from '@vates/async-each'
 import { decorateMethodsWith } from '@vates/decorate-with'
 import { defer } from 'golike-defer'
 import assert from 'node:assert'
+import * as UUID from 'uuid'
 import isVhdDifferencingDisk from 'vhd-lib/isVhdDifferencingDisk.js'
 import mapValues from 'lodash/mapValues.js'
 
@@ -9,11 +10,48 @@ import { AbstractRemote } from './_AbstractRemote.mjs'
 import { forkDeltaExport } from './_forkDeltaExport.mjs'
 import { IncrementalRemoteWriter } from '../_writers/IncrementalRemoteWriter.mjs'
 import { Task } from '../../Task.mjs'
+import { Disposable } from 'promise-toolbox'
+import { openVhd } from 'vhd-lib'
+import { getVmBackupDir } from '../../_getVmBackupDir.mjs'
 
 class IncrementalRemoteVmBackupRunner extends AbstractRemote {
   _getRemoteWriter() {
     return IncrementalRemoteWriter
   }
+  async _selectBaseVm(metadata) {
+    // for each disk , get the parent
+    const baseUuidToSrcVdi = new Map()
+
+    // no previous backup for a base( =key) backup
+    if (metadata.isBase) {
+      return
+    }
+    await asyncEach(Object.entries(metadata.vdis), async ([id, vdi]) => {
+      const isDifferencing = metadata.isVhdDifferencing[`${id}.vhd`]
+      if (isDifferencing) {
+        const vmDir = getVmBackupDir(metadata.vm.uuid)
+        const path = `${vmDir}/${metadata.vhds[id]}`
+        // don't catch error : we can't recover if the source vhd are missing
+        await Disposable.use(openVhd(this._sourceRemoteAdapter._handler, path), vhd => {
+          baseUuidToSrcVdi.set(UUID.stringify(vhd.header.parentUuid), vdi.$snapshot_of$uuid)
+        })
+      }
+    })
+
+    const presentBaseVdis = new Map(baseUuidToSrcVdi)
+    await this._callWriters(
+      writer => presentBaseVdis.size !== 0 && writer.checkBaseVdis(presentBaseVdis),
+      'writer.checkBaseVdis()',
+      false
+    )
+    // check if the parent vdi are present in all the remotes
+    baseUuidToSrcVdi.forEach((srcVdiUuid, baseUuid) => {
+      if (!presentBaseVdis.has(baseUuid)) {
+        throw new Error(`Missing vdi ${baseUuid} which is a base for a delta`)
+      }
+    })
+    // yeah , let's go
+  }
   async _run($defer) {
     const transferList = await this._computeTransferList(({ mode }) => mode === 'delta')
     await this._callWriters(async writer => {
@@ -26,7 +64,7 @@ class IncrementalRemoteVmBackupRunner extends AbstractRemote {
     if (transferList.length > 0) {
       for (const metadata of transferList) {
         assert.strictEqual(metadata.mode, 'delta')
-
+        await this._selectBaseVm(metadata)
         await this._callWriters(writer => writer.prepare({ isBase: metadata.isBase }), 'writer.prepare()')
         const incrementalExport = await this._sourceRemoteAdapter.readIncrementalVmBackup(metadata, undefined, {
           useChain: false,
@@ -50,6 +88,17 @@ class IncrementalRemoteVmBackupRunner extends AbstractRemote {
             }),
           'writer.transfer()'
         )
+        // this will update parent name with the needed alias
+        await this._callWriters(
+          writer =>
+            writer.updateUuidAndChain({
+              isVhdDifferencing,
+              timestamp: metadata.timestamp,
+              vdis: incrementalExport.vdis,
+            }),
+          'writer.updateUuidAndChain()'
+        )
+
         await this._callWriters(writer => writer.cleanup(), 'writer.cleanup()')
         // for healthcheck
         this._tags = metadata.vm.tags

@xen-orchestra/backups/_runners/_vmRunners/IncrementalXapi.mjs

@@ -78,6 +78,18 @@ export const IncrementalXapi = class IncrementalXapiVmBackupRunner extends Abstr
       'writer.transfer()'
     )
 
+    // we want to control the uuid of the vhd in the chain
+    // and ensure they are correctly chained
+    await this._callWriters(
+      writer =>
+        writer.updateUuidAndChain({
+          isVhdDifferencing,
+          timestamp,
+          vdis: deltaExport.vdis,
+        }),
+      'writer.updateUuidAndChain()'
+    )
+
     this._baseVm = exportedVm
 
     if (baseVm !== undefined) {
@@ -133,7 +145,7 @@ export const IncrementalXapi = class IncrementalXapiVmBackupRunner extends Abstr
       ])
       const srcVdi = srcVdis[snapshotOf]
       if (srcVdi !== undefined) {
-        baseUuidToSrcVdi.set(baseUuid, srcVdi)
+        baseUuidToSrcVdi.set(baseUuid, srcVdi.uuid)
       } else {
         debug('ignore snapshot VDI because no longer present on VM', {
           vdi: baseUuid,
@@ -154,18 +166,18 @@ export const IncrementalXapi = class IncrementalXapiVmBackupRunner extends Abstr
     }
 
     const fullVdisRequired = new Set()
-    baseUuidToSrcVdi.forEach((srcVdi, baseUuid) => {
+    baseUuidToSrcVdi.forEach((srcVdiUuid, baseUuid) => {
       if (presentBaseVdis.has(baseUuid)) {
         debug('found base VDI', {
           base: baseUuid,
-          vdi: srcVdi.uuid,
+          vdi: srcVdiUuid,
         })
       } else {
         debug('missing base VDI', {
           base: baseUuid,
-          vdi: srcVdi.uuid,
+          vdi: srcVdiUuid,
         })
-        fullVdisRequired.add(srcVdi.uuid)
+        fullVdisRequired.add(srcVdiUuid)
       }
     })
 

@xen-orchestra/backups/_runners/_writers/IncrementalRemoteWriter.mjs

@@ -1,17 +1,15 @@
 import assert from 'node:assert'
 import mapValues from 'lodash/mapValues.js'
-import ignoreErrors from 'promise-toolbox/ignoreErrors'
 import { asyncEach } from '@vates/async-each'
 import { asyncMap } from '@xen-orchestra/async-map'
-import { chainVhd, checkVhdChain, openVhd, VhdAbstract } from 'vhd-lib'
+import { chainVhd, openVhd } from 'vhd-lib'
 import { createLogger } from '@xen-orchestra/log'
 import { decorateClass } from '@vates/decorate-with'
 import { defer } from 'golike-defer'
-import { dirname } from 'node:path'
+import { dirname, basename } from 'node:path'
 
 import { formatFilenameDate } from '../../_filenameDate.mjs'
 import { getOldEntries } from '../../_getOldEntries.mjs'
-import { TAG_BASE_DELTA } from '../../_incrementalVm.mjs'
 import { Task } from '../../Task.mjs'
 
 import { MixinRemoteWriter } from './_MixinRemoteWriter.mjs'
@@ -23,42 +21,45 @@ import { Disposable } from 'promise-toolbox'
 const { warn } = createLogger('xo:backups:DeltaBackupWriter')
 
 export class IncrementalRemoteWriter extends MixinRemoteWriter(AbstractIncrementalWriter) {
+  #parentVdiPaths
+  #vhds
   async checkBaseVdis(baseUuidToSrcVdi) {
+    this.#parentVdiPaths = {}
     const { handler } = this._adapter
     const adapter = this._adapter
 
     const vdisDir = `${this._vmBackupDir}/vdis/${this._job.id}`
 
-    await asyncMap(baseUuidToSrcVdi, async ([baseUuid, srcVdi]) => {
-      let found = false
+    await asyncMap(baseUuidToSrcVdi, async ([baseUuid, srcVdiUuid]) => {
+      let parentDestPath
+      const vhdDir = `${vdisDir}/${srcVdiUuid}`
       try {
-        const vhds = await handler.list(`${vdisDir}/${srcVdi.uuid}`, {
+        const vhds = await handler.list(vhdDir, {
           filter: _ => _[0] !== '.' && _.endsWith('.vhd'),
           ignoreMissing: true,
           prependDir: true,
         })
         const packedBaseUuid = packUuid(baseUuid)
-        await asyncMap(vhds, async path => {
-          try {
-            await checkVhdChain(handler, path)
-            // Warning, this should not be written as found = found || await adapter.isMergeableParent(packedBaseUuid, path)
-            //
-            // since all the checks of a path are done in parallel, found would be containing
-            // only the last answer of isMergeableParent which is probably not the right one
-            // this led to the support tickets  https://help.vates.fr/#ticket/zoom/4751 , 4729, 4665 and 4300
+        // the last one is probably the right one
 
-            const isMergeable = await adapter.isMergeableParent(packedBaseUuid, path)
-            found = found || isMergeable
+        for (let i = vhds.length - 1; i >= 0 && parentDestPath === undefined; i--) {
+          const path = vhds[i]
+          try {
+            if (await adapter.isMergeableParent(packedBaseUuid, path)) {
+              parentDestPath = path
+            }
           } catch (error) {
             warn('checkBaseVdis', { error })
-            await ignoreErrors.call(VhdAbstract.unlink(handler, path))
           }
-        })
+        }
       } catch (error) {
         warn('checkBaseVdis', { error })
       }
-      if (!found) {
+      // no usable parent => the runner will have to decide to fall back to a full or stop backup
+      if (parentDestPath === undefined) {
         baseUuidToSrcVdi.delete(baseUuid)
+      } else {
+        this.#parentVdiPaths[vhdDir] = parentDestPath
       }
     })
   }
@@ -123,6 +124,44 @@ export class IncrementalRemoteWriter extends MixinRemoteWriter(AbstractIncrement
     }
   }
 
+  async updateUuidAndChain({ isVhdDifferencing, vdis }) {
+    assert.notStrictEqual(
+      this.#vhds,
+      undefined,
+      '_transfer must be called before updateUuidAndChain for incremental backups'
+    )
+
+    const parentVdiPaths = this.#parentVdiPaths
+    const { handler } = this._adapter
+    const vhds = this.#vhds
+    await asyncEach(Object.entries(vdis), async ([id, vdi]) => {
+      const isDifferencing = isVhdDifferencing[`${id}.vhd`]
+      const path = `${this._vmBackupDir}/${vhds[id]}`
+      if (isDifferencing) {
+        assert.notStrictEqual(
+          parentVdiPaths,
+          'checkbasevdi must be called before updateUuidAndChain for incremental backups'
+        )
+        const parentPath = parentVdiPaths[dirname(path)]
+        // we are in a incremental backup
+        // we already computed the chain in checkBaseVdis
+        assert.notStrictEqual(parentPath, undefined, 'A differential VHD must have a parent')
+        // forbid any kind of loop
+        assert.ok(basename(parentPath) < basename(path), `vhd must be sorted to be chained`)
+        await chainVhd(handler, parentPath, handler, path)
+      }
+
+      // set the correct UUID in the VHD if needed
+      await Disposable.use(openVhd(handler, path), async vhd => {
+        if (!vhd.footer.uuid.equals(packUuid(vdi.uuid))) {
+          vhd.footer.uuid = packUuid(vdi.uuid)
+          await vhd.readBlockAllocationTable() // required by writeFooter()
+          await vhd.writeFooter()
+        }
+      })
+    })
+  }
+
   async _deleteOldEntries() {
     const adapter = this._adapter
     const oldEntries = this._oldEntries
@@ -141,16 +180,10 @@ export class IncrementalRemoteWriter extends MixinRemoteWriter(AbstractIncrement
     const jobId = job.id
     const handler = adapter.handler
 
-    let metadataContent = await this._isAlreadyTransferred(timestamp)
-    if (metadataContent !== undefined) {
-      // skip backup while being vigilant to not stuck the forked stream
-      Task.info('This backup has already been transfered')
-      Object.values(deltaExport.streams).forEach(stream => stream.destroy())
-      return { size: 0 }
-    }
-
     const basename = formatFilenameDate(timestamp)
-    const vhds = mapValues(
+    // update this.#vhds before eventually skipping transfer, so that
+    // updateUuidAndChain has all the mandatory data
+    const vhds = (this.#vhds = mapValues(
       deltaExport.vdis,
       vdi =>
         `vdis/${jobId}/${
@@ -160,7 +193,15 @@ export class IncrementalRemoteWriter extends MixinRemoteWriter(AbstractIncrement
               vdi.uuid
             : vdi.$snapshot_of$uuid
         }/${adapter.getVhdFileName(basename)}`
-    )
+    ))
+
+    let metadataContent = await this._isAlreadyTransferred(timestamp)
+    if (metadataContent !== undefined) {
+      // skip backup while being vigilant to not stuck the forked stream
+      Task.info('This backup has already been transfered')
+      Object.values(deltaExport.streams).forEach(stream => stream.destroy())
+      return { size: 0 }
+    }
 
     metadataContent = {
       isVhdDifferencing,
@@ -176,38 +217,13 @@ export class IncrementalRemoteWriter extends MixinRemoteWriter(AbstractIncrement
       vm,
       vmSnapshot,
     }
+
     const { size } = await Task.run({ name: 'transfer' }, async () => {
       let transferSize = 0
       await asyncEach(
-        Object.entries(deltaExport.vdis),
-        async ([id, vdi]) => {
+        Object.keys(deltaExport.vdis),
+        async id => {
           const path = `${this._vmBackupDir}/${vhds[id]}`
-
-          const isDifferencing = isVhdDifferencing[`${id}.vhd`]
-          let parentPath
-          if (isDifferencing) {
-            const vdiDir = dirname(path)
-            parentPath = (
-              await handler.list(vdiDir, {
-                filter: filename => filename[0] !== '.' && filename.endsWith('.vhd'),
-                prependDir: true,
-              })
-            )
-              .sort()
-              .pop()
-
-            assert.notStrictEqual(
-              parentPath,
-              undefined,
-              `missing parent of ${id} in ${dirname(path)}, looking for ${vdi.other_config[TAG_BASE_DELTA]}`
-            )
-
-            parentPath = parentPath.slice(1) // remove leading slash
-
-            // TODO remove when this has been done before the export
-            await checkVhd(handler, parentPath)
-          }
-
           // don't write it as transferSize += await async function
           // since i += await asyncFun lead to race condition
           // as explained : https://eslint.org/docs/latest/rules/require-atomic-updates
@@ -219,17 +235,6 @@ export class IncrementalRemoteWriter extends MixinRemoteWriter(AbstractIncrement
             writeBlockConcurrency: this._config.writeBlockConcurrency,
           })
           transferSize += transferSizeOneDisk
-
-          if (isDifferencing) {
-            await chainVhd(handler, parentPath, handler, path)
-          }
-
-          // set the correct UUID in the VHD
-          await Disposable.use(openVhd(handler, path), async vhd => {
-            vhd.footer.uuid = packUuid(vdi.uuid)
-            await vhd.readBlockAllocationTable() // required by writeFooter()
-            await vhd.writeFooter()
-          })
         },
         {
           concurrency: settings.diskPerVmConcurrency,

@xen-orchestra/backups/_runners/_writers/IncrementalXapiWriter.mjs

@@ -1,3 +1,4 @@
+import assert from 'node:assert'
 import { asyncMap, asyncMapSettled } from '@xen-orchestra/async-map'
 import ignoreErrors from 'promise-toolbox/ignoreErrors'
 import { formatDateTime } from '@xen-orchestra/xapi'
@@ -14,6 +15,7 @@ import find from 'lodash/find.js'
 
 export class IncrementalXapiWriter extends MixinXapiWriter(AbstractIncrementalWriter) {
   async checkBaseVdis(baseUuidToSrcVdi, baseVm) {
+    assert.notStrictEqual(baseVm, undefined)
     const sr = this._sr
     const replicatedVm = listReplicatedVms(sr.$xapi, this._job.id, sr.uuid, this._vmUuid).find(
       vm => vm.other_config[TAG_COPY_SRC] === baseVm.uuid
@@ -36,7 +38,9 @@ export class IncrementalXapiWriter extends MixinXapiWriter(AbstractIncrementalWr
       }
     }
   }
-
+  updateUuidAndChain() {
+    // nothing to do, the chaining is not modified in this case
+  }
   prepare({ isFull }) {
     // create the task related to this export and ensure all methods are called in this context
     const task = new Task({

@xen-orchestra/backups/_runners/_writers/_AbstractIncrementalWriter.mjs

@@ -5,6 +5,10 @@ export class AbstractIncrementalWriter extends AbstractWriter {
     throw new Error('Not implemented')
   }
 
+  updateUuidAndChain() {
+    throw new Error('Not implemented')
+  }
+
   cleanup() {
     throw new Error('Not implemented')
   }

@xen-orchestra/backups/docs/VM backups/README.md

@@ -230,6 +230,7 @@ Settings are described in [`@xen-orchestra/backups/\_runners/VmsXapi.mjs``](http
     - `checkBaseVdis(baseUuidToSrcVdi, baseVm)`
     - `prepare({ isFull })`
     - `transfer({ timestamp, deltaExport, sizeContainers })`
+    - `updateUuidAndChain({ isVhdDifferencing, vdis })`
     - `cleanup()`
     - `healthCheck()` // is not executed if no health check sr or tag doesn't match
   - **Full**

@xen-orchestra/lite/src/libs/xapi-stats.ts

@@ -50,7 +50,17 @@ const RRD_POINTS_PER_STEP: { [key in RRD_STEP]: number } = {
 // Utils
 // -------------------------------------------------------------------
 
-function convertNanToNull(value: number) {
+function parseNumber(value: number | string) {
+  // Starting from XAPI 23.31, numbers in the JSON payload are encoded as
+  // strings to support NaN, Infinity and -Infinity
+  if (typeof value === 'string') {
+    const asNumber = +value
+    if (isNaN(asNumber) && value !== 'NaN') {
+      throw new Error('cannot parse number: ' + value)
+    }
+    value = asNumber
+  }
+
   return isNaN(value) ? null : value
 }
 
@@ -59,7 +69,7 @@ function convertNanToNull(value: number) {
 // -------------------------------------------------------------------
 
 const computeValues = (dataRow: any, legendIndex: number, transformValue = identity) =>
-  map(dataRow, ({ values }) => transformValue(convertNanToNull(values[legendIndex])))
+  map(dataRow, ({ values }) => transformValue(parseNumber(values[legendIndex])))
 
 const createGetProperty = (obj: object, property: string, defaultValue: unknown) =>
   defaults(obj, { [property]: defaultValue })[property] as any
@@ -319,8 +329,14 @@ export default class XapiStats {
       },
       abortSignal,
     })
-    // eslint-disable-next-line import/no-named-as-default-member -- https://github.com/json5/json5/issues/287
-    return JSON5.parse(await resp.text())
+    const text = await resp.text()
+    try {
+      // starting from XAPI 23.31, the response is valid JSON
+      return JSON.parse(text)
+    } catch (error) {
+      // eslint-disable-next-line import/no-named-as-default-member -- https://github.com/json5/json5/issues/287
+      return JSON5.parse(text)
+    }
   }
 
   // To avoid multiple requests, we keep a cache for the stats and
@@ -383,7 +399,10 @@ export default class XapiStats {
         abortSignal,
       })
 
-      const actualStep = json.meta.step as number
+      const actualStep = parseNumber(json.meta.step)
+      if (actualStep !== step) {
+        throw new FaultyGranularity(`Unable to get the true granularity: ${actualStep}`)
+      }
 
       if (json.data.length > 0) {
         // fetched data is organized from the newest to the oldest
@@ -407,14 +426,15 @@ export default class XapiStats {
 
           let stepStats = xoObjectStats[actualStep]
           let cacheStepStats = cacheXoObjectStats[actualStep]
-          if (stepStats === undefined || stepStats.endTimestamp !== json.meta.end) {
+          const endTimestamp = parseNumber(json.meta.end)
+          if (stepStats === undefined || stepStats.endTimestamp !== endTimestamp) {
             stepStats = xoObjectStats[actualStep] = {
-              endTimestamp: json.meta.end,
+              endTimestamp,
               interval: actualStep,
               canBeExpired: false,
             }
             cacheStepStats = cacheXoObjectStats[actualStep] = {
-              endTimestamp: json.meta.end,
+              endTimestamp,
               interval: actualStep,
               canBeExpired: true,
             }
@@ -438,10 +458,6 @@ export default class XapiStats {
           })
         })
       }
-
-      if (actualStep !== step) {
-        throw new FaultyGranularity(`Unable to get the true granularity: ${actualStep}`)
-      }
     } catch (error) {
       if (error instanceof Error && error.name === 'AbortError') {
         return

@xen-orchestra/xapi/_Mixins.mjs

@@ -7,3 +7,4 @@ export { default as VDI } from './vdi.mjs'
 export { default as VIF } from './vif.mjs'
 export { default as VM } from './vm.mjs'
 export { default as VTPM } from './vtpm.mjs'
+export { default as VUSB } from './vusb.mjs'

@xen-orchestra/xapi/vusb.mjs

@@ -0,0 +1,16 @@
+import ignoreErrors from 'promise-toolbox/ignoreErrors'
+
+export default class Vusb {
+  async create(VM, USB_group) {
+    return this.call('VUSB.create', VM, USB_group)
+  }
+
+  async unplug(ref) {
+    await this.call('VUSB.unplug', ref)
+  }
+
+  async destroy(ref) {
+    await ignoreErrors.call(this.VUSB_unplug(ref))
+    await this.call('VUSB.destroy', ref)
+  }
+}

CHANGELOG.unreleased.md

@@ -11,6 +11,8 @@
 - [Stats] Support format used by XAPI 23.31
 - [REST API] Export host [SMT](https://en.wikipedia.org/wiki/Simultaneous_multithreading) status at `/hosts/:id/smt` [Forum#71374](https://xcp-ng.org/forum/post/71374)
 - [Home & REST API] `$container` field of an halted VM now points to a host if a VDI is on a local storage [Forum#71769](https://xcp-ng.org/forum/post/71769)
+- [Size Input] Ability to select two new units in the dropdown (`TiB`, `PiB`) (PR [#7382](https://github.com/vatesfr/xen-orchestra/pull/7382))
+
 
 ### Bug fixes
 
@@ -19,6 +21,8 @@
 - [Settings/XO Config] Sort backups from newest to oldest
 - [Plugins/audit] Don't log `tag.getAllConfigured` calls
 - [Remotes] Correctly clear error when the remote is tested with success
+- [Import/VMWare] Fix importing last snapshot (PR [#7370](https://github.com/vatesfr/xen-orchestra/pull/7370))
+- [Host/Reboot] Fix false positive warning when restarting an host after updates (PR [#7366](https://github.com/vatesfr/xen-orchestra/pull/7366))
 
 ### Packages to release
 
@@ -42,6 +46,6 @@
 - vhd-lib patch
 - xo-server minor
 - xo-server-audit patch
-- xo-web patch
+- xo-web minor
 
 <!--packages-end-->

packages/vhd-lib/Vhd/VhdSynthetic.js

@@ -46,9 +46,9 @@ const VhdSynthetic = class VhdSynthetic extends VhdAbstract {
   }
 
   get compressionType() {
-    const compressionType = this.vhds[0].compressionType
-    for (let i = 0; i < this.vhds.length; i++) {
-      if (compressionType !== this.vhds[i].compressionType) {
+    const compressionType = this.#vhds[0].compressionType
+    for (let i = 0; i < this.#vhds.length; i++) {
+      if (compressionType !== this.#vhds[i].compressionType) {
         return 'MIXED'
       }
     }

packages/xo-server/src/api/host.mjs

@@ -1,3 +1,4 @@
+import semver from 'semver'
 import { createLogger } from '@xen-orchestra/log'
 import assert from 'assert'
 import { format } from 'json-rpc-peer'
@@ -136,13 +137,38 @@ export async function restart({
     const pool = this.getObject(host.$poolId, 'pool')
     const master = this.getObject(pool.master, 'host')
     const hostRebootRequired = host.rebootRequired
-    if (hostRebootRequired && host.id !== master.id && host.version === master.version) {
-      throw incorrectState({
-        actual: hostRebootRequired,
-        expected: false,
-        object: master.id,
-        property: 'rebootRequired',
-      })
+
+    // we are currently in an host upgrade process
+    if (hostRebootRequired && host.id !== master.id) {
+      // this error is not ideal but it means that the pool master must be fully upgraded/rebooted before the current host can be rebooted.
+      //
+      // there is a single error for the 3 cases because the client must handle them the same way
+      const throwError = () =>
+        incorrectState({
+          actual: hostRebootRequired,
+          expected: false,
+          object: master.id,
+          property: 'rebootRequired',
+        })
+
+      if (semver.lt(master.version, host.version)) {
+        log.error(`master version (${master.version}) is older than the host version (${host.version})`, {
+          masterId: master.id,
+          hostId: host.id,
+        })
+        throwError()
+      }
+
+      if (semver.eq(master.version, host.version)) {
+        if ((await this.getXapi(host).listMissingPatches(master._xapiId)).length > 0) {
+          log.error('master has missing patches', { masterId: master.id })
+          throwError()
+        }
+        if (master.rebootRequired) {
+          log.error('master needs to reboot')
+          throwError()
+        }
+      }
     }
   }
 

packages/xo-server/src/api/vusb.mjs

@@ -0,0 +1,42 @@
+// Creates a VUSB which will be plugged to the VM at its next restart
+// Only one VUSB can be attached to a given USB_group, and up to six VUSB can be attached to a VM.
+export async function create({ vm, usbGroup }) {
+  const xapi = this.getXapi(vm)
+  const vusbRef = await xapi.VUSB_create(vm._xapiRef, usbGroup._xapiRef)
+  return xapi.getField('VUSB', vusbRef, 'uuid')
+}
+
+create.params = {
+  vmId: { type: 'string' },
+  usbGroupId: { type: 'string' },
+}
+
+create.resolve = {
+  vm: ['vmId', 'VM', 'administrate'],
+  usbGroup: ['usbGroupId', 'USB_group', 'administrate'],
+}
+
+// Unplug VUSB until next VM restart
+export async function unplug({ vusb }) {
+  await this.getXapi(vusb).VUSB_unplug(vusb._xapiRef)
+}
+
+unplug.params = {
+  id: { type: 'string' },
+}
+
+unplug.resolve = {
+  vusb: ['id', 'VUSB', 'administrate'],
+}
+
+export async function destroy({ vusb }) {
+  await this.getXapi(vusb).VUSB_destroy(vusb._xapiRef)
+}
+
+destroy.params = {
+  id: { type: 'string' },
+}
+
+destroy.resolve = {
+  vusb: ['id', 'VUSB', 'administrate'],
+}

packages/xo-server/src/xapi-object-to-xo.mjs

@@ -882,6 +882,8 @@ const TRANSFORMS = {
     }
   },
 
+  // -----------------------------------------------------------------
+
   vtpm(obj) {
     return {
       type: 'VTPM',
@@ -889,6 +891,32 @@ const TRANSFORMS = {
       vm: link(obj, 'VM'),
     }
   },
+
+  // -----------------------------------------------------------------
+
+  vusb(obj) {
+    return {
+      type: 'VUSB',
+
+      vm: link(obj, 'VM'),
+      currentlyAttached: obj.currently_attached,
+      usbGroup: link(obj, 'USB_group'),
+    }
+  },
+
+  // -----------------------------------------------------------------
+
+  usb_group(obj) {
+    return {
+      type: 'USB_group',
+
+      PUSB: link(obj, 'PUSBs'),
+      VUSB: link(obj, 'VUSBs'),
+      nameDescription: obj.name_description,
+      nameLabel: obj.name_label,
+      otherConfig: obj.other_config,
+    }
+  },
 }
 
 // ===================================================================

packages/xo-server/src/xo-mixins/migrate-vm.mjs

@@ -280,7 +280,7 @@ export default class MigrateVm {
             const stream = vhd.stream()
             await vdi.$importContent(stream, { format: VDI_FORMAT_VHD })
           }
-          return vhd
+          return { vdi, vhd }
         })
       )
     )

packages/xo-web/src/common/form/index.js

@@ -138,7 +138,7 @@ export class Range extends Component {
 
 export Toggle from './toggle'
 
-const UNITS = ['kiB', 'MiB', 'GiB']
+const UNITS = ['kiB', 'MiB', 'GiB', 'TiB', 'PiB']
 const DEFAULT_UNIT = 'GiB'
 
 export class SizeInput extends BaseComponent {