04b78ccb-48cd-4c0d-a660-86c4c0e4bbec

Committed 17 Mar 2025 09:11PM UTC coverage: 71.456% (-0.005%) from 71.461%

Build # 04b78ccb-48cd-4c0d-a660-86c4c0e4bbec

Build Type

push

prow

Committed by

web-flow

Commit Message

Merge pull request #14250 from iholder101/c_cleanup

Cleanup: Remove redundant size capacity, handle potential nil pointer dereference, replace an empty slice with nil

Coverage Stats

14 of 15 new or added lines in 7 files covered. (93.33%)

30 existing lines in 1 file now uncovered.

62111 of 86922 relevant lines covered (71.46%)

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74.4

/pkg/virt-handler/cmd-client/client.go

/*
 * This file is part of the KubeVirt project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Copyright 2017 Red Hat, Inc.
 *
 */

package cmdclient

//go:generate mockgen -source $GOFILE -package=$GOPACKAGE -destination=generated_mock_$GOFILE

/*
 ATTENTION: Rerun code generators when interface signatures are modified.
*/

import (
        "context"
        "errors"
        "fmt"
        "io"
        "net"
        "net/rpc"
        "os"
        "path/filepath"
        "syscall"
        "time"

        "google.golang.org/grpc"
        "google.golang.org/grpc/codes"
        "google.golang.org/grpc/status"

        "k8s.io/apimachinery/pkg/api/resource"
        "k8s.io/apimachinery/pkg/util/json"

        v1 "kubevirt.io/api/core/v1"
        "kubevirt.io/client-go/log"

        diskutils "kubevirt.io/kubevirt/pkg/ephemeral-disk-utils"
        com "kubevirt.io/kubevirt/pkg/handler-launcher-com"
        "kubevirt.io/kubevirt/pkg/handler-launcher-com/cmd/info"
        cmdv1 "kubevirt.io/kubevirt/pkg/handler-launcher-com/cmd/v1"
        grpcutil "kubevirt.io/kubevirt/pkg/util/net/grpc"
        "kubevirt.io/kubevirt/pkg/virt-launcher/virtwrap/api"
        "kubevirt.io/kubevirt/pkg/virt-launcher/virtwrap/stats"
)

var (
        // add older version when supported
        // don't use the variable in pkg/handler-launcher-com/cmd/v1/version.go in order to detect version mismatches early
        supportedCmdVersions = []uint32{1}
        baseDir              = "/var/run/kubevirt"
        podsBaseDir          = "/pods"
)

const StandardLauncherSocketFileName = "launcher-sock"
const StandardInitLauncherSocketFileName = "launcher-init-sock"
const StandardLauncherUnresponsiveFileName = "launcher-unresponsive"

type MigrationOptions struct {
        Bandwidth                resource.Quantity
        ProgressTimeout          int64
        CompletionTimeoutPerGiB  int64
        UnsafeMigration          bool
        AllowAutoConverge        bool
        AllowPostCopy            bool
        ParallelMigrationThreads *uint
        AllowWorkloadDisruption  bool
}

type LauncherClient interface {
        SyncVirtualMachine(vmi *v1.VirtualMachineInstance, options *cmdv1.VirtualMachineOptions) error
        PauseVirtualMachine(vmi *v1.VirtualMachineInstance) error
        UnpauseVirtualMachine(vmi *v1.VirtualMachineInstance) error
        FreezeVirtualMachine(vmi *v1.VirtualMachineInstance, unfreezeTimeoutSeconds int32) error
        UnfreezeVirtualMachine(vmi *v1.VirtualMachineInstance) error
        SyncMigrationTarget(vmi *v1.VirtualMachineInstance, options *cmdv1.VirtualMachineOptions) error
        ResetVirtualMachine(vmi *v1.VirtualMachineInstance) error
        SoftRebootVirtualMachine(vmi *v1.VirtualMachineInstance) error
        SignalTargetPodCleanup(vmi *v1.VirtualMachineInstance) error
        ShutdownVirtualMachine(vmi *v1.VirtualMachineInstance) error
        KillVirtualMachine(vmi *v1.VirtualMachineInstance) error
        MigrateVirtualMachine(vmi *v1.VirtualMachineInstance, options *MigrationOptions) error
        CancelVirtualMachineMigration(vmi *v1.VirtualMachineInstance) error
        FinalizeVirtualMachineMigration(vmi *v1.VirtualMachineInstance, options *cmdv1.VirtualMachineOptions) error
        HotplugHostDevices(vmi *v1.VirtualMachineInstance) error
        DeleteDomain(vmi *v1.VirtualMachineInstance) error
        GetDomain() (*api.Domain, bool, error)
        GetDomainStats() (*stats.DomainStats, bool, error)
        GetGuestInfo() (*v1.VirtualMachineInstanceGuestAgentInfo, error)
        GetUsers() (v1.VirtualMachineInstanceGuestOSUserList, error)
        GetFilesystems() (v1.VirtualMachineInstanceFileSystemList, error)
        Exec(string, string, []string, int32) (int, string, error)
        Ping() error
        GuestPing(string, int32) error
        Close()
        VirtualMachineMemoryDump(vmi *v1.VirtualMachineInstance, dumpPath string) error
        GetQemuVersion() (string, error)
        SyncVirtualMachineCPUs(vmi *v1.VirtualMachineInstance, options *cmdv1.VirtualMachineOptions) error
        GetSEVInfo() (*v1.SEVPlatformInfo, error)
        GetLaunchMeasurement(*v1.VirtualMachineInstance) (*v1.SEVMeasurementInfo, error)
        InjectLaunchSecret(*v1.VirtualMachineInstance, *v1.SEVSecretOptions) error
        SyncVirtualMachineMemory(vmi *v1.VirtualMachineInstance, options *cmdv1.VirtualMachineOptions) error
}

type VirtLauncherClient struct {
        v1client cmdv1.CmdClient
        conn     *grpc.ClientConn
}

const (
        shortTimeout time.Duration = 5 * time.Second
        longTimeout  time.Duration = 20 * time.Second
)

func SetBaseDir(dir string) {
        baseDir = dir
}

func SetPodsBaseDir(baseDir string) {
        podsBaseDir = baseDir
}

func ListAllSockets() ([]string, error) {
        var socketFiles []string

        dirs, err := os.ReadDir(podsBaseDir)
        if err != nil {
                return nil, err
        }
        for _, dir := range dirs {
                if !dir.IsDir() {
                        continue
                }

                socketPath := SocketFilePathOnHost(dir.Name())
                exists, err := diskutils.FileExists(socketPath)
                if err != nil {
                        return socketFiles, err
                }

                if exists {
                        socketFiles = append(socketFiles, socketPath)
                }
        }

        return socketFiles, nil
}

func SocketsDirectory() string {
        return filepath.Join(baseDir, "sockets")
}

func IsSocketUnresponsive(socket string) bool {
        file := filepath.Join(filepath.Dir(socket), StandardLauncherUnresponsiveFileName)
        exists, _ := diskutils.FileExists(file)
        // if the unresponsive socket monitor marked this socket
        // as being unresponsive, return true
        if exists {
                return true
        }

        exists, _ = diskutils.FileExists(socket)
        // if the socket file doesn't exist, it's definitely unresponsive as well
        return !exists
}

func MarkSocketUnresponsive(socket string) error {
        file := filepath.Join(filepath.Dir(socket), StandardLauncherUnresponsiveFileName)
        f, err := os.Create(file)
        if err != nil {
                return err
        }
        f.Close()
        return nil
}

func SocketDirectoryOnHost(podUID string) string {
        return fmt.Sprintf("/%s/%s/volumes/kubernetes.io~empty-dir/sockets", podsBaseDir, podUID)
}

func SocketFilePathOnHost(podUID string) string {
        return fmt.Sprintf("%s/%s", SocketDirectoryOnHost(podUID), StandardLauncherSocketFileName)
}

// gets the cmd socket for a VMI
func FindPodDirOnHost(vmi *v1.VirtualMachineInstance) (string, error) {

        // It is possible for multiple pods to be active on a single VMI
        // during migrations. This loop will discover the active pod on
        // this particular local node if it exists. A active pod not
        // running on this node will not have a kubelet pods directory,
        // so it will not be found.
        for podUID := range vmi.Status.ActivePods {
                socketPodDir := SocketDirectoryOnHost(string(podUID))
                exists, _ := diskutils.FileExists(socketPodDir)
                if exists {
                        return socketPodDir, nil
                }
        }

        return "", fmt.Errorf("No command socketdir for vmi %s", vmi.UID)
}

// gets the cmd socket for a VMI
func FindSocketOnHost(vmi *v1.VirtualMachineInstance) (string, error) {
        socketsFound := 0
        foundSocket := ""
        // It is possible for multiple pods to be active on a single VMI
        // during migrations. This loop will discover the active pod on
        // this particular local node if it exists. A active pod not
        // running on this node will not have a kubelet pods directory,
        // so it will not be found.
        for podUID := range vmi.Status.ActivePods {
                socket := SocketFilePathOnHost(string(podUID))
                exists, _ := diskutils.FileExists(socket)
                if exists {
                        foundSocket = socket
                        socketsFound++
                }
        }

        if socketsFound == 1 {
                return foundSocket, nil
        } else if socketsFound > 1 {
                return "", fmt.Errorf("Found multiple sockets for vmi %s/%s. waiting for only one to exist", vmi.Namespace, vmi.Name)
        }

        return "", fmt.Errorf("No command socket found for vmi %s", vmi.UID)
}

func SocketOnGuest() string {
        sockFile := StandardLauncherSocketFileName
        return filepath.Join(SocketsDirectory(), sockFile)
}

func UninitializedSocketOnGuest() string {
        sockFile := StandardInitLauncherSocketFileName
        return filepath.Join(SocketsDirectory(), sockFile)
}

func NewClient(socketPath string) (LauncherClient, error) {
        // dial socket
        conn, err := grpcutil.DialSocket(socketPath)
        if err != nil {
                log.Log.Reason(err).Infof("failed to dial cmd socket: %s", socketPath)
                return nil, err
        }

        // create info client and find cmd version to use
        infoClient := info.NewCmdInfoClient(conn)
        return NewClientWithInfoClient(infoClient, conn)
}

func NewClientWithInfoClient(infoClient info.CmdInfoClient, conn *grpc.ClientConn) (LauncherClient, error) {
        ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
        defer cancel()
        info, err := infoClient.Info(ctx, &info.CmdInfoRequest{})
        if err != nil {
                return nil, fmt.Errorf("could not check cmd server version: %v", err)
        }
        version, err := com.GetHighestCompatibleVersion(info.SupportedCmdVersions, supportedCmdVersions)
        if err != nil {
                return nil, err
        }

        // create cmd client
        switch version {
        case 1:
                client := cmdv1.NewCmdClient(conn)
                return newV1Client(client, conn), nil
        default:
                return nil, fmt.Errorf("cmd client version %v not implemented yet", version)
        }
}

func newV1Client(client cmdv1.CmdClient, conn *grpc.ClientConn) LauncherClient {
        return &VirtLauncherClient{
                v1client: client,
                conn:     conn,
        }
}

func (c *VirtLauncherClient) Close() {
        c.conn.Close()
}

func (c *VirtLauncherClient) genericSendVMICmd(cmdName string,
        cmdFunc func(ctx context.Context, request *cmdv1.VMIRequest, opts ...grpc.CallOption) (*cmdv1.Response, error),
        vmi *v1.VirtualMachineInstance, options *cmdv1.VirtualMachineOptions) error {

        vmiJson, err := json.Marshal(vmi)
        if err != nil {
                return err
        }

        request := &cmdv1.VMIRequest{
                Vmi: &cmdv1.VMI{
                        VmiJson: vmiJson,
                },
                Options: options,
        }

        ctx, cancel := context.WithTimeout(context.Background(), longTimeout)
        defer cancel()
        response, err := cmdFunc(ctx, request)

        err = handleError(err, cmdName, response)
        return err
}
func IsUnimplemented(err error) bool {
        if grpcStatus, ok := status.FromError(err); ok {
                if grpcStatus.Code() == codes.Unimplemented {
                        return true
                }
        }
        return false
}
func handleError(err error, cmdName string, response *cmdv1.Response) error {
        if IsDisconnected(err) {
                return err
        } else if IsUnimplemented(err) {
                return err
        } else if err != nil {
                msg := fmt.Sprintf("unknown error encountered sending command %s: %s", cmdName, err.Error())
                return fmt.Errorf(msg)
        } else if response != nil && !response.Success {
                return fmt.Errorf("server error. command %s failed: %q", cmdName, response.Message)
        }
        return nil
}

func IsDisconnected(err error) bool {
        if err == nil {
                return false
        }

        if err == rpc.ErrShutdown || err == io.ErrUnexpectedEOF || err == io.EOF {
                return true
        }

        if opErr, ok := err.(*net.OpError); ok {
                if syscallErr, ok := opErr.Err.(*os.SyscallError); ok {
                        // catches "connection reset by peer"
                        if syscallErr.Err == syscall.ECONNRESET {
                                return true
                        }
                }
        }

        if grpcStatus, ok := status.FromError(err); ok {

                // see https://github.com/grpc/grpc-go/blob/master/codes/codes.go
                switch grpcStatus.Code() {
                case codes.Canceled:
                        // e.g. v1client connection closing
                        return true
                }

        }

        return false
}

func (c *VirtLauncherClient) SyncVirtualMachine(vmi *v1.VirtualMachineInstance, options *cmdv1.VirtualMachineOptions) error {
        return c.genericSendVMICmd("SyncVMI", c.v1client.SyncVirtualMachine, vmi, options)
}

func (c *VirtLauncherClient) PauseVirtualMachine(vmi *v1.VirtualMachineInstance) error {
        return c.genericSendVMICmd("Pause", c.v1client.PauseVirtualMachine, vmi, &cmdv1.VirtualMachineOptions{})
}

func (c *VirtLauncherClient) UnpauseVirtualMachine(vmi *v1.VirtualMachineInstance) error {
        return c.genericSendVMICmd("Unpause", c.v1client.UnpauseVirtualMachine, vmi, &cmdv1.VirtualMachineOptions{})
}

func (c *VirtLauncherClient) FreezeVirtualMachine(vmi *v1.VirtualMachineInstance, unfreezeTimeoutSeconds int32) error {
        vmiJson, err := json.Marshal(vmi)
        if err != nil {
                return err
        }

        request := &cmdv1.FreezeRequest{
                Vmi: &cmdv1.VMI{
                        VmiJson: vmiJson,
                },
                UnfreezeTimeoutSeconds: unfreezeTimeoutSeconds,
        }

        ctx, cancel := context.WithTimeout(context.Background(), longTimeout)
        defer cancel()
        response, err := c.v1client.FreezeVirtualMachine(ctx, request)

        err = handleError(err, "Freeze", response)
        return err
}

func (c *VirtLauncherClient) UnfreezeVirtualMachine(vmi *v1.VirtualMachineInstance) error {
        return c.genericSendVMICmd("Unfreeze", c.v1client.UnfreezeVirtualMachine, vmi, &cmdv1.VirtualMachineOptions{})
}

func (c *VirtLauncherClient) VirtualMachineMemoryDump(vmi *v1.VirtualMachineInstance, dumpPath string) error {
        vmiJson, err := json.Marshal(vmi)
        if err != nil {
                return err
        }

        request := &cmdv1.MemoryDumpRequest{
                Vmi: &cmdv1.VMI{
                        VmiJson: vmiJson,
                },
                DumpPath: dumpPath,
        }

        ctx, cancel := context.WithTimeout(context.Background(), longTimeout)
        defer cancel()
        response, err := c.v1client.VirtualMachineMemoryDump(ctx, request)
        err = handleError(err, "Memorydump", response)
        return err
}

func (c *VirtLauncherClient) SoftRebootVirtualMachine(vmi *v1.VirtualMachineInstance) error {
        return c.genericSendVMICmd("SoftReboot", c.v1client.SoftRebootVirtualMachine, vmi, &cmdv1.VirtualMachineOptions{})
}

func (c *VirtLauncherClient) ResetVirtualMachine(vmi *v1.VirtualMachineInstance) error {
        return c.genericSendVMICmd("Reset", c.v1client.ResetVirtualMachine, vmi, &cmdv1.VirtualMachineOptions{})
}

func (c *VirtLauncherClient) ShutdownVirtualMachine(vmi *v1.VirtualMachineInstance) error {
        return c.genericSendVMICmd("Shutdown", c.v1client.ShutdownVirtualMachine, vmi, &cmdv1.VirtualMachineOptions{})
}

func (c *VirtLauncherClient) KillVirtualMachine(vmi *v1.VirtualMachineInstance) error {
        return c.genericSendVMICmd("Kill", c.v1client.KillVirtualMachine, vmi, &cmdv1.VirtualMachineOptions{})
}

func (c *VirtLauncherClient) DeleteDomain(vmi *v1.VirtualMachineInstance) error {
        return c.genericSendVMICmd("Delete", c.v1client.DeleteVirtualMachine, vmi, &cmdv1.VirtualMachineOptions{})
}

func (c *VirtLauncherClient) MigrateVirtualMachine(vmi *v1.VirtualMachineInstance, options *MigrationOptions) error {

        vmiJson, err := json.Marshal(vmi)
        if err != nil {
                return err
        }

        optionsJson, err := json.Marshal(options)
        if err != nil {
                return err
        }

        request := &cmdv1.MigrationRequest{
                Vmi: &cmdv1.VMI{
                        VmiJson: vmiJson,
                },
                Options: optionsJson,
        }

        ctx, cancel := context.WithTimeout(context.Background(), longTimeout)
        defer cancel()
        response, err := c.v1client.MigrateVirtualMachine(ctx, request)

        err = handleError(err, "Migrate", response)
        return err

}

func (c *VirtLauncherClient) CancelVirtualMachineMigration(vmi *v1.VirtualMachineInstance) error {
        return c.genericSendVMICmd("CancelMigration", c.v1client.CancelVirtualMachineMigration, vmi, &cmdv1.VirtualMachineOptions{})
}

func (c *VirtLauncherClient) SyncMigrationTarget(vmi *v1.VirtualMachineInstance, options *cmdv1.VirtualMachineOptions) error {
        return c.genericSendVMICmd("SyncMigrationTarget", c.v1client.SyncMigrationTarget, vmi, options)
}

func (c *VirtLauncherClient) SyncVirtualMachineCPUs(vmi *v1.VirtualMachineInstance, options *cmdv1.VirtualMachineOptions) error {
        return c.genericSendVMICmd("SyncVirtualMachineCPUs", c.v1client.SyncVirtualMachineCPUs, vmi, options)
}

func (c *VirtLauncherClient) SignalTargetPodCleanup(vmi *v1.VirtualMachineInstance) error {
        return c.genericSendVMICmd("SignalTargetPodCleanup", c.v1client.SignalTargetPodCleanup, vmi, &cmdv1.VirtualMachineOptions{})
}

func (c *VirtLauncherClient) FinalizeVirtualMachineMigration(vmi *v1.VirtualMachineInstance, options *cmdv1.VirtualMachineOptions) error {
        return c.genericSendVMICmd("FinalizeVirtualMachineMigration", c.v1client.FinalizeVirtualMachineMigration, vmi, options)
}

func (c *VirtLauncherClient) HotplugHostDevices(vmi *v1.VirtualMachineInstance) error {
        return c.genericSendVMICmd("HotplugHostDevices", c.v1client.HotplugHostDevices, vmi, &cmdv1.VirtualMachineOptions{})
}

func (c *VirtLauncherClient) GetDomain() (*api.Domain, bool, error) {

        domain := &api.Domain{}
        exists := false

        request := &cmdv1.EmptyRequest{}
        ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
        defer cancel()

        domainResponse, err := c.v1client.GetDomain(ctx, request)
        var response *cmdv1.Response
        if domainResponse != nil {
                response = domainResponse.Response
        }

        if err = handleError(err, "GetDomain", response); err != nil || domainResponse == nil {
                return domain, exists, err
        }

        if domainResponse.Domain != "" {
                if err := json.Unmarshal([]byte(domainResponse.Domain), domain); err != nil {
                        log.Log.Reason(err).Error("error unmarshalling domain")
                        return domain, exists, err
                }
                exists = true
        }
        return domain, exists, nil
}

func (c *VirtLauncherClient) GetQemuVersion() (string, error) {
        request := &cmdv1.EmptyRequest{}
        ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
        defer cancel()

        versionResponse, err := c.v1client.GetQemuVersion(ctx, request)
        var response *cmdv1.Response
        if versionResponse != nil {
                response = versionResponse.Response
        }
        if err = handleError(err, "GetQemuVersion", response); err != nil {
                return "", err
        }

        if versionResponse != nil && versionResponse.Version != "" {
                return versionResponse.Version, nil
        }

        log.Log.Reason(err).Error("error getting the qemu version")
        return "", errors.New("error getting the qemu version")
}

func (c *VirtLauncherClient) GetDomainStats() (*stats.DomainStats, bool, error) {
        stats := &stats.DomainStats{}
        exists := false

        request := &cmdv1.EmptyRequest{}
        ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
        defer cancel()

        domainStatsResponse, err := c.v1client.GetDomainStats(ctx, request)
        var response *cmdv1.Response
        if domainStatsResponse != nil {
                response = domainStatsResponse.Response
        }

        if err = handleError(err, "GetDomainStats", response); err != nil || domainStatsResponse == nil {
                return stats, exists, err
        }

        if domainStatsResponse.DomainStats != "" {
                if err := json.Unmarshal([]byte(domainStatsResponse.DomainStats), stats); err != nil {
                        log.Log.Reason(err).Error("error unmarshalling domain")
                        return stats, exists, err
                }
                exists = true
        }
        return stats, exists, nil
}

func (c *VirtLauncherClient) Ping() error {
        request := &cmdv1.EmptyRequest{}
        ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
        defer cancel()
        response, err := c.v1client.Ping(ctx, request)

        err = handleError(err, "Ping", response)
        return err
}

// GetGuestInfo is a counterpart for virt-launcher call to gather guest agent data
func (c *VirtLauncherClient) GetGuestInfo() (*v1.VirtualMachineInstanceGuestAgentInfo, error) {
        guestInfo := &v1.VirtualMachineInstanceGuestAgentInfo{}

        request := &cmdv1.EmptyRequest{}
        ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
        defer cancel()

        gaRespose, err := c.v1client.GetGuestInfo(ctx, request)
        var response *cmdv1.Response
        if gaRespose != nil {
                response = gaRespose.Response
        }

        if err = handleError(err, "GetGuestInfo", response); err != nil || gaRespose == nil {
                return guestInfo, err
        }

        if gaRespose.GuestInfoResponse != "" {
                if err := json.Unmarshal([]byte(gaRespose.GetGuestInfoResponse()), guestInfo); err != nil {
                        log.Log.Reason(err).Error("error unmarshalling guest agent response")
                        return guestInfo, err
                }
        }
        return guestInfo, nil
}

// GetUsers returns the list of the active users on the guest machine
func (c *VirtLauncherClient) GetUsers() (v1.VirtualMachineInstanceGuestOSUserList, error) {
        var userList []v1.VirtualMachineInstanceGuestOSUser

        request := &cmdv1.EmptyRequest{}
        ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
        defer cancel()

        uResponse, err := c.v1client.GetUsers(ctx, request)
        var response *cmdv1.Response
        if uResponse != nil {
                response = uResponse.Response
        }

        if err = handleError(err, "GetUsers", response); err != nil || uResponse == nil {
                return v1.VirtualMachineInstanceGuestOSUserList{}, err
        }

        if uResponse.GetGuestUserListResponse() != "" {
                if err := json.Unmarshal([]byte(uResponse.GetGuestUserListResponse()), &userList); err != nil {
                        log.Log.Reason(err).Error("error unmarshalling guest user list response")
                        return v1.VirtualMachineInstanceGuestOSUserList{}, err
                }
        }

        guestUserList := v1.VirtualMachineInstanceGuestOSUserList{
                Items: userList,
        }

        return guestUserList, nil
}

// GetFilesystems returns the list of active filesystems on the guest machine
func (c *VirtLauncherClient) GetFilesystems() (v1.VirtualMachineInstanceFileSystemList, error) {
        var fsList []v1.VirtualMachineInstanceFileSystem

        request := &cmdv1.EmptyRequest{}
        ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
        defer cancel()

        fsResponse, err := c.v1client.GetFilesystems(ctx, request)
        var response *cmdv1.Response
        if fsResponse != nil {
                response = fsResponse.Response
        }

        if err = handleError(err, "GetFilesystems", response); err != nil || fsResponse == nil {
                return v1.VirtualMachineInstanceFileSystemList{}, err
        }

        if fsResponse.GetGuestFilesystemsResponse() != "" {
                if err := json.Unmarshal([]byte(fsResponse.GetGuestFilesystemsResponse()), &fsList); err != nil {
                        log.Log.Reason(err).Error("error unmarshalling guest filesystem list response")
                        return v1.VirtualMachineInstanceFileSystemList{}, err
                }
        }

        filesystemList := v1.VirtualMachineInstanceFileSystemList{
                Items: fsList,
        }

        return filesystemList, nil
}

// Exec the command with args on the guest and return the resulting status code, stdOut and error
func (c *VirtLauncherClient) Exec(domainName, command string, args []string, timeoutSeconds int32) (int, string, error) {
        request := &cmdv1.ExecRequest{
                DomainName:     domainName,
                Command:        command,
                Args:           args,
                TimeoutSeconds: timeoutSeconds,
        }
        exitCode := -1
        stdOut := ""

        ctx, cancel := context.WithTimeout(
                context.Background(),
                // we give the context a bit more time as the timeout should kick
                // on the actual execution
                time.Duration(timeoutSeconds)*time.Second+shortTimeout,
        )
        defer cancel()

        resp, err := c.v1client.Exec(ctx, request)
        if resp == nil {
                return exitCode, stdOut, err
        }

        exitCode = int(resp.ExitCode)
        stdOut = resp.StdOut

        return exitCode, stdOut, err
}

func (c *VirtLauncherClient) GuestPing(domainName string, timeoutSeconds int32) error {
        request := &cmdv1.GuestPingRequest{
                DomainName:     domainName,
                TimeoutSeconds: timeoutSeconds,
        }
        ctx, cancel := context.WithTimeout(
                context.Background(),
                // we give the context a bit more time as the timeout should kick
                // on the actual execution
                time.Duration(timeoutSeconds)*time.Second+shortTimeout,
        )
        defer cancel()

        _, err := c.v1client.GuestPing(ctx, request)
        return err
}

func (c *VirtLauncherClient) GetSEVInfo() (*v1.SEVPlatformInfo, error) {
        request := &cmdv1.EmptyRequest{}
        ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
        defer cancel()

        sevInfoResponse, err := c.v1client.GetSEVInfo(ctx, request)
        if err = handleError(err, "GetSEVInfo", sevInfoResponse.GetResponse()); err != nil {
                return nil, err
        }

        sevPlatformInfo := &v1.SEVPlatformInfo{}
        if err := json.Unmarshal(sevInfoResponse.GetSevInfo(), sevPlatformInfo); err != nil {
                log.Log.Reason(err).Error("error unmarshalling SEV info response")
                return nil, err
        }

        return sevPlatformInfo, nil
}

func (c *VirtLauncherClient) GetLaunchMeasurement(vmi *v1.VirtualMachineInstance) (*v1.SEVMeasurementInfo, error) {
        vmiJson, err := json.Marshal(vmi)
        if err != nil {
                return nil, err
        }

        request := &cmdv1.VMIRequest{
                Vmi: &cmdv1.VMI{
                        VmiJson: vmiJson,
                },
        }

        ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
        defer cancel()

        launchMeasurementRespose, err := c.v1client.GetLaunchMeasurement(ctx, request)
        if err = handleError(err, "GetLaunchMeasurement", launchMeasurementRespose.GetResponse()); err != nil {
                return nil, err
        }

        sevMeasurementInfo := &v1.SEVMeasurementInfo{}
        if err := json.Unmarshal(launchMeasurementRespose.GetLaunchMeasurement(), sevMeasurementInfo); err != nil {
                log.Log.Reason(err).Error("error unmarshalling launch measurement response")
                return nil, err
        }

        return sevMeasurementInfo, nil
}

func (c *VirtLauncherClient) InjectLaunchSecret(vmi *v1.VirtualMachineInstance, sevSecretOptions *v1.SEVSecretOptions) error {
        vmiJson, err := json.Marshal(vmi)
        if err != nil {
                return err
        }

        optionsJson, err := json.Marshal(sevSecretOptions)
        if err != nil {
                return err
        }

        request := &cmdv1.InjectLaunchSecretRequest{
                Vmi: &cmdv1.VMI{
                        VmiJson: vmiJson,
                },
                Options: optionsJson,
        }

        ctx, cancel := context.WithTimeout(context.Background(), longTimeout)
        defer cancel()

        response, err := c.v1client.InjectLaunchSecret(ctx, request)

        return handleError(err, "InjectLaunchSecret", response)
}

func (c *VirtLauncherClient) SyncVirtualMachineMemory(vmi *v1.VirtualMachineInstance, options *cmdv1.VirtualMachineOptions) error {
        return c.genericSendVMICmd("SyncVirtualMachineMemory", c.v1client.SyncVirtualMachineMemory, vmi, options)
}

kubevirt / kubevirt / 04b78ccb-48cd-4c0d-a660-86c4c0e4bbec

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