// limitations under the License.

package iptables

import (
	"errors"
	"fmt"
	"net"

	"github.com/vishvananda/netlink"
	"golang.org/x/sys/unix"
)

func AddInpodMarkIPRule(cfg *Config) error {
	err := forEachInpodMarkIPRule(cfg, netlink.RuleAdd)
	if errors.Is(err, unix.EEXIST) {
		log.Debugf("Ignoring exists error adding inpod mark ip rule: %v", err)
		return nil
	}
	return err
}

	if !ok {
		return nil, errors.New(`field "spec.workload_identity_pool" is not a string`)
	}
	return &mem, nil
}

func mcpDialOptions(ctx context.Context, gcpProject string, k8sCreds credentials.PerRPCCredentials) ([]grpc.DialOption, error) {
	systemRoots, err := x509.SystemCertPool()
	if err != nil {
		return nil, fmt.Errorf("failed to get system cert pool: %w", err)
	}

package cmd

import (
	"errors"
	"testing"

	"istio.io/istio/istioctl/pkg/analyze"
	"istio.io/istio/istioctl/pkg/util"
)

var KnownErrorCode = map[error]int{
	errors.New("unknown command"):                                  ExitIncorrectUsage,
	errors.New("unexpected error"):                                 ExitUnknownError,
	util.CommandParseError{Err: errors.New("command parse error")}: ExitIncorrectUsage,

		wantErr     bool
	}{
		{
			name:        "errors if unable to unmarshal bytes",
			inputFile:   "",
			wantConfigs: 0,
			wantErr:     true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			cw := &ConfigWriter{}
			cd, _ := os.ReadFile(tt.inputFile)
			err := cw.Prime(cd)
			if cw.configDump == nil {
				if tt.wantConfigs != 0 {
					t.Errorf("wanted some configs loaded but config dump was nil")

	return errors.New("not implemented on this platform")
}

func (m *realDeps) deleteIP(name string, ip netip.Addr, ipProto uint8) error {
	return errors.New("not implemented on this platform")
}

func (m *realDeps) flush(name string) error {
	return errors.New("not implemented on this platform")
}

package nodeagent

import (
	"errors"
	"fmt"
)

var ErrPartialAdd = errors.New("partial add error")

type PartialAddError struct {
	inner error
}

func (e *PartialAddError) Error() string {
	return fmt.Sprintf("%s: %v", ErrPartialAdd.Error(), e.inner)
}

func (e *PartialAddError) Unwrap() []error {
	return []error{ErrPartialAdd, e.inner}
}

	}

	secret, err := builder.Build()
	if err != nil {
		return SecretItem{}, fmt.Errorf("error building secret: %v", err)
	}

	return secret, nil
}

func secretMetaFromCert(rawCert []byte) (SecretMeta, error) {
	block, _ := pem.Decode(rawCert)
	if block == nil {
		return SecretMeta{}, fmt.Errorf("failed to parse certificate PEM")
	}
	cert, err := x509.ParseCertificate(block.Bytes)
	if err != nil {

	"sigs.k8s.io/yaml"

	"istio.io/istio/pkg/util/protomarshal"
)

const typeURLPrefix = "type.googleapis.com/"

func (c *ConfigWriter) PrintEcds(outputFormat string) error {
	if c.configDump == nil {
		return fmt.Errorf("config writer has not been primed")
	}

	dump, err := c.configDump.GetEcdsConfigDump()
	if err != nil {
		return err
	}

func GetWebhookRevision(wh admitv1.MutatingWebhookConfiguration) (string, error) {
	if tagName, ok := wh.ObjectMeta.Labels[label.IoIstioRev.Name]; ok {
		return tagName, nil
	}
	return "", fmt.Errorf("could not extract tag revision from webhook")
}

// DeleteTagWebhooks deletes the given webhooks.
func DeleteTagWebhooks(ctx context.Context, client kubernetes.Interface, tag string) error {
	webhooks, err := GetWebhooksWithTag(ctx, client, tag)

func (w *Wrapper) getSection(sectionTypeURL configTypeURL) (*anypb.Any, error) {
	var dumpAny *anypb.Any
	for _, conf := range w.Configs {
		if conf.TypeUrl == string(sectionTypeURL) {
			dumpAny = conf
		}
	}
	if dumpAny == nil {
		return nil, fmt.Errorf("config dump has no configuration type %s", sectionTypeURL)
	}

	return dumpAny, nil
}