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decentral1se
2024-08-04 11:06:58 +02:00
parent 2a5985e44e
commit 04aec8232f
3557 changed files with 981078 additions and 1 deletions
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291
vendor/google.golang.org/grpc/credentials/credentials.go generated vendored Normal file
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/*
*
* Copyright 2014 gRPC authors.
*
* 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.
*
*/
// Package credentials implements various credentials supported by gRPC library,
// which encapsulate all the state needed by a client to authenticate with a
// server and make various assertions, e.g., about the client's identity, role,
// or whether it is authorized to make a particular call.
package credentials // import "google.golang.org/grpc/credentials"
import (
"context"
"errors"
"fmt"
"net"
"google.golang.org/grpc/attributes"
icredentials "google.golang.org/grpc/internal/credentials"
"google.golang.org/protobuf/proto"
)
// PerRPCCredentials defines the common interface for the credentials which need to
// attach security information to every RPC (e.g., oauth2).
type PerRPCCredentials interface {
// GetRequestMetadata gets the current request metadata, refreshing tokens
// if required. This should be called by the transport layer on each
// request, and the data should be populated in headers or other
// context. If a status code is returned, it will be used as the status for
// the RPC (restricted to an allowable set of codes as defined by gRFC
// A54). uri is the URI of the entry point for the request. When supported
// by the underlying implementation, ctx can be used for timeout and
// cancellation. Additionally, RequestInfo data will be available via ctx
// to this call. TODO(zhaoq): Define the set of the qualified keys instead
// of leaving it as an arbitrary string.
GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error)
// RequireTransportSecurity indicates whether the credentials requires
// transport security.
RequireTransportSecurity() bool
}
// SecurityLevel defines the protection level on an established connection.
//
// This API is experimental.
type SecurityLevel int
const (
// InvalidSecurityLevel indicates an invalid security level.
// The zero SecurityLevel value is invalid for backward compatibility.
InvalidSecurityLevel SecurityLevel = iota
// NoSecurity indicates a connection is insecure.
NoSecurity
// IntegrityOnly indicates a connection only provides integrity protection.
IntegrityOnly
// PrivacyAndIntegrity indicates a connection provides both privacy and integrity protection.
PrivacyAndIntegrity
)
// String returns SecurityLevel in a string format.
func (s SecurityLevel) String() string {
switch s {
case NoSecurity:
return "NoSecurity"
case IntegrityOnly:
return "IntegrityOnly"
case PrivacyAndIntegrity:
return "PrivacyAndIntegrity"
}
return fmt.Sprintf("invalid SecurityLevel: %v", int(s))
}
// CommonAuthInfo contains authenticated information common to AuthInfo implementations.
// It should be embedded in a struct implementing AuthInfo to provide additional information
// about the credentials.
//
// This API is experimental.
type CommonAuthInfo struct {
SecurityLevel SecurityLevel
}
// GetCommonAuthInfo returns the pointer to CommonAuthInfo struct.
func (c CommonAuthInfo) GetCommonAuthInfo() CommonAuthInfo {
return c
}
// ProtocolInfo provides information regarding the gRPC wire protocol version,
// security protocol, security protocol version in use, server name, etc.
type ProtocolInfo struct {
// ProtocolVersion is the gRPC wire protocol version.
ProtocolVersion string
// SecurityProtocol is the security protocol in use.
SecurityProtocol string
// SecurityVersion is the security protocol version. It is a static version string from the
// credentials, not a value that reflects per-connection protocol negotiation. To retrieve
// details about the credentials used for a connection, use the Peer's AuthInfo field instead.
//
// Deprecated: please use Peer.AuthInfo.
SecurityVersion string
// ServerName is the user-configured server name.
ServerName string
}
// AuthInfo defines the common interface for the auth information the users are interested in.
// A struct that implements AuthInfo should embed CommonAuthInfo by including additional
// information about the credentials in it.
type AuthInfo interface {
AuthType() string
}
// ErrConnDispatched indicates that rawConn has been dispatched out of gRPC
// and the caller should not close rawConn.
var ErrConnDispatched = errors.New("credentials: rawConn is dispatched out of gRPC")
// TransportCredentials defines the common interface for all the live gRPC wire
// protocols and supported transport security protocols (e.g., TLS, SSL).
type TransportCredentials interface {
// ClientHandshake does the authentication handshake specified by the
// corresponding authentication protocol on rawConn for clients. It returns
// the authenticated connection and the corresponding auth information
// about the connection. The auth information should embed CommonAuthInfo
// to return additional information about the credentials. Implementations
// must use the provided context to implement timely cancellation. gRPC
// will try to reconnect if the error returned is a temporary error
// (io.EOF, context.DeadlineExceeded or err.Temporary() == true). If the
// returned error is a wrapper error, implementations should make sure that
// the error implements Temporary() to have the correct retry behaviors.
// Additionally, ClientHandshakeInfo data will be available via the context
// passed to this call.
//
// The second argument to this method is the `:authority` header value used
// while creating new streams on this connection after authentication
// succeeds. Implementations must use this as the server name during the
// authentication handshake.
//
// If the returned net.Conn is closed, it MUST close the net.Conn provided.
ClientHandshake(context.Context, string, net.Conn) (net.Conn, AuthInfo, error)
// ServerHandshake does the authentication handshake for servers. It returns
// the authenticated connection and the corresponding auth information about
// the connection. The auth information should embed CommonAuthInfo to return additional information
// about the credentials.
//
// If the returned net.Conn is closed, it MUST close the net.Conn provided.
ServerHandshake(net.Conn) (net.Conn, AuthInfo, error)
// Info provides the ProtocolInfo of this TransportCredentials.
Info() ProtocolInfo
// Clone makes a copy of this TransportCredentials.
Clone() TransportCredentials
// OverrideServerName specifies the value used for the following:
// - verifying the hostname on the returned certificates
// - as SNI in the client's handshake to support virtual hosting
// - as the value for `:authority` header at stream creation time
//
// Deprecated: use grpc.WithAuthority instead. Will be supported
// throughout 1.x.
OverrideServerName(string) error
}
// Bundle is a combination of TransportCredentials and PerRPCCredentials.
//
// It also contains a mode switching method, so it can be used as a combination
// of different credential policies.
//
// Bundle cannot be used together with individual TransportCredentials.
// PerRPCCredentials from Bundle will be appended to other PerRPCCredentials.
//
// This API is experimental.
type Bundle interface {
// TransportCredentials returns the transport credentials from the Bundle.
//
// Implementations must return non-nil transport credentials. If transport
// security is not needed by the Bundle, implementations may choose to
// return insecure.NewCredentials().
TransportCredentials() TransportCredentials
// PerRPCCredentials returns the per-RPC credentials from the Bundle.
//
// May be nil if per-RPC credentials are not needed.
PerRPCCredentials() PerRPCCredentials
// NewWithMode should make a copy of Bundle, and switch mode. Modifying the
// existing Bundle may cause races.
//
// NewWithMode returns nil if the requested mode is not supported.
NewWithMode(mode string) (Bundle, error)
}
// RequestInfo contains request data attached to the context passed to GetRequestMetadata calls.
//
// This API is experimental.
type RequestInfo struct {
// The method passed to Invoke or NewStream for this RPC. (For proto methods, this has the format "/some.Service/Method")
Method string
// AuthInfo contains the information from a security handshake (TransportCredentials.ClientHandshake, TransportCredentials.ServerHandshake)
AuthInfo AuthInfo
}
// RequestInfoFromContext extracts the RequestInfo from the context if it exists.
//
// This API is experimental.
func RequestInfoFromContext(ctx context.Context) (ri RequestInfo, ok bool) {
ri, ok = icredentials.RequestInfoFromContext(ctx).(RequestInfo)
return ri, ok
}
// ClientHandshakeInfo holds data to be passed to ClientHandshake. This makes
// it possible to pass arbitrary data to the handshaker from gRPC, resolver,
// balancer etc. Individual credential implementations control the actual
// format of the data that they are willing to receive.
//
// This API is experimental.
type ClientHandshakeInfo struct {
// Attributes contains the attributes for the address. It could be provided
// by the gRPC, resolver, balancer etc.
Attributes *attributes.Attributes
}
// ClientHandshakeInfoFromContext returns the ClientHandshakeInfo struct stored
// in ctx.
//
// This API is experimental.
func ClientHandshakeInfoFromContext(ctx context.Context) ClientHandshakeInfo {
chi, _ := icredentials.ClientHandshakeInfoFromContext(ctx).(ClientHandshakeInfo)
return chi
}
// CheckSecurityLevel checks if a connection's security level is greater than or equal to the specified one.
// It returns success if 1) the condition is satisfied or 2) AuthInfo struct does not implement GetCommonAuthInfo() method
// or 3) CommonAuthInfo.SecurityLevel has an invalid zero value. For 2) and 3), it is for the purpose of backward-compatibility.
//
// This API is experimental.
func CheckSecurityLevel(ai AuthInfo, level SecurityLevel) error {
type internalInfo interface {
GetCommonAuthInfo() CommonAuthInfo
}
if ai == nil {
return errors.New("AuthInfo is nil")
}
if ci, ok := ai.(internalInfo); ok {
// CommonAuthInfo.SecurityLevel has an invalid value.
if ci.GetCommonAuthInfo().SecurityLevel == InvalidSecurityLevel {
return nil
}
if ci.GetCommonAuthInfo().SecurityLevel < level {
return fmt.Errorf("requires SecurityLevel %v; connection has %v", level, ci.GetCommonAuthInfo().SecurityLevel)
}
}
// The condition is satisfied or AuthInfo struct does not implement GetCommonAuthInfo() method.
return nil
}
// ChannelzSecurityInfo defines the interface that security protocols should implement
// in order to provide security info to channelz.
//
// This API is experimental.
type ChannelzSecurityInfo interface {
GetSecurityValue() ChannelzSecurityValue
}
// ChannelzSecurityValue defines the interface that GetSecurityValue() return value
// should satisfy. This interface should only be satisfied by *TLSChannelzSecurityValue
// and *OtherChannelzSecurityValue.
//
// This API is experimental.
type ChannelzSecurityValue interface {
isChannelzSecurityValue()
}
// OtherChannelzSecurityValue defines the struct that non-TLS protocol should return
// from GetSecurityValue(), which contains protocol specific security info. Note
// the Value field will be sent to users of channelz requesting channel info, and
// thus sensitive info should better be avoided.
//
// This API is experimental.
type OtherChannelzSecurityValue struct {
ChannelzSecurityValue
Name string
Value proto.Message
}

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vendor/google.golang.org/grpc/credentials/insecure/insecure.go generated vendored Normal file
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/*
*
* Copyright 2020 gRPC authors.
*
* 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.
*
*/
// Package insecure provides an implementation of the
// credentials.TransportCredentials interface which disables transport security.
package insecure
import (
"context"
"net"
"google.golang.org/grpc/credentials"
)
// NewCredentials returns a credentials which disables transport security.
//
// Note that using this credentials with per-RPC credentials which require
// transport security is incompatible and will cause grpc.Dial() to fail.
func NewCredentials() credentials.TransportCredentials {
return insecureTC{}
}
// insecureTC implements the insecure transport credentials. The handshake
// methods simply return the passed in net.Conn and set the security level to
// NoSecurity.
type insecureTC struct{}
func (insecureTC) ClientHandshake(ctx context.Context, _ string, conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
return conn, info{credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity}}, nil
}
func (insecureTC) ServerHandshake(conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
return conn, info{credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity}}, nil
}
func (insecureTC) Info() credentials.ProtocolInfo {
return credentials.ProtocolInfo{SecurityProtocol: "insecure"}
}
func (insecureTC) Clone() credentials.TransportCredentials {
return insecureTC{}
}
func (insecureTC) OverrideServerName(string) error {
return nil
}
// info contains the auth information for an insecure connection.
// It implements the AuthInfo interface.
type info struct {
credentials.CommonAuthInfo
}
// AuthType returns the type of info as a string.
func (info) AuthType() string {
return "insecure"
}
// insecureBundle implements an insecure bundle.
// An insecure bundle provides a thin wrapper around insecureTC to support
// the credentials.Bundle interface.
type insecureBundle struct{}
// NewBundle returns a bundle with disabled transport security and no per rpc credential.
func NewBundle() credentials.Bundle {
return insecureBundle{}
}
// NewWithMode returns a new insecure Bundle. The mode is ignored.
func (insecureBundle) NewWithMode(string) (credentials.Bundle, error) {
return insecureBundle{}, nil
}
// PerRPCCredentials returns an nil implementation as insecure
// bundle does not support a per rpc credential.
func (insecureBundle) PerRPCCredentials() credentials.PerRPCCredentials {
return nil
}
// TransportCredentials returns the underlying insecure transport credential.
func (insecureBundle) TransportCredentials() credentials.TransportCredentials {
return NewCredentials()
}

283
vendor/google.golang.org/grpc/credentials/tls.go generated vendored Normal file
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/*
*
* Copyright 2014 gRPC authors.
*
* 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.
*
*/
package credentials
import (
"context"
"crypto/tls"
"crypto/x509"
"fmt"
"net"
"net/url"
"os"
"google.golang.org/grpc/grpclog"
credinternal "google.golang.org/grpc/internal/credentials"
"google.golang.org/grpc/internal/envconfig"
)
var logger = grpclog.Component("credentials")
// TLSInfo contains the auth information for a TLS authenticated connection.
// It implements the AuthInfo interface.
type TLSInfo struct {
State tls.ConnectionState
CommonAuthInfo
// This API is experimental.
SPIFFEID *url.URL
}
// AuthType returns the type of TLSInfo as a string.
func (t TLSInfo) AuthType() string {
return "tls"
}
// cipherSuiteLookup returns the string version of a TLS cipher suite ID.
func cipherSuiteLookup(cipherSuiteID uint16) string {
for _, s := range tls.CipherSuites() {
if s.ID == cipherSuiteID {
return s.Name
}
}
for _, s := range tls.InsecureCipherSuites() {
if s.ID == cipherSuiteID {
return s.Name
}
}
return fmt.Sprintf("unknown ID: %v", cipherSuiteID)
}
// GetSecurityValue returns security info requested by channelz.
func (t TLSInfo) GetSecurityValue() ChannelzSecurityValue {
v := &TLSChannelzSecurityValue{
StandardName: cipherSuiteLookup(t.State.CipherSuite),
}
// Currently there's no way to get LocalCertificate info from tls package.
if len(t.State.PeerCertificates) > 0 {
v.RemoteCertificate = t.State.PeerCertificates[0].Raw
}
return v
}
// tlsCreds is the credentials required for authenticating a connection using TLS.
type tlsCreds struct {
// TLS configuration
config *tls.Config
}
func (c tlsCreds) Info() ProtocolInfo {
return ProtocolInfo{
SecurityProtocol: "tls",
SecurityVersion: "1.2",
ServerName: c.config.ServerName,
}
}
func (c *tlsCreds) ClientHandshake(ctx context.Context, authority string, rawConn net.Conn) (_ net.Conn, _ AuthInfo, err error) {
// use local cfg to avoid clobbering ServerName if using multiple endpoints
cfg := credinternal.CloneTLSConfig(c.config)
if cfg.ServerName == "" {
serverName, _, err := net.SplitHostPort(authority)
if err != nil {
// If the authority had no host port or if the authority cannot be parsed, use it as-is.
serverName = authority
}
cfg.ServerName = serverName
}
conn := tls.Client(rawConn, cfg)
errChannel := make(chan error, 1)
go func() {
errChannel <- conn.Handshake()
close(errChannel)
}()
select {
case err := <-errChannel:
if err != nil {
conn.Close()
return nil, nil, err
}
case <-ctx.Done():
conn.Close()
return nil, nil, ctx.Err()
}
// The negotiated protocol can be either of the following:
// 1. h2: When the server supports ALPN. Only HTTP/2 can be negotiated since
// it is the only protocol advertised by the client during the handshake.
// The tls library ensures that the server chooses a protocol advertised
// by the client.
// 2. "" (empty string): If the server doesn't support ALPN. ALPN is a requirement
// for using HTTP/2 over TLS. We can terminate the connection immediately.
np := conn.ConnectionState().NegotiatedProtocol
if np == "" {
if envconfig.EnforceALPNEnabled {
conn.Close()
return nil, nil, fmt.Errorf("credentials: cannot check peer: missing selected ALPN property")
}
logger.Warningf("Allowing TLS connection to server %q with ALPN disabled. TLS connections to servers with ALPN disabled will be disallowed in future grpc-go releases", cfg.ServerName)
}
tlsInfo := TLSInfo{
State: conn.ConnectionState(),
CommonAuthInfo: CommonAuthInfo{
SecurityLevel: PrivacyAndIntegrity,
},
}
id := credinternal.SPIFFEIDFromState(conn.ConnectionState())
if id != nil {
tlsInfo.SPIFFEID = id
}
return credinternal.WrapSyscallConn(rawConn, conn), tlsInfo, nil
}
func (c *tlsCreds) ServerHandshake(rawConn net.Conn) (net.Conn, AuthInfo, error) {
conn := tls.Server(rawConn, c.config)
if err := conn.Handshake(); err != nil {
conn.Close()
return nil, nil, err
}
cs := conn.ConnectionState()
// The negotiated application protocol can be empty only if the client doesn't
// support ALPN. In such cases, we can close the connection since ALPN is required
// for using HTTP/2 over TLS.
if cs.NegotiatedProtocol == "" {
if envconfig.EnforceALPNEnabled {
conn.Close()
return nil, nil, fmt.Errorf("credentials: cannot check peer: missing selected ALPN property")
} else if logger.V(2) {
logger.Info("Allowing TLS connection from client with ALPN disabled. TLS connections with ALPN disabled will be disallowed in future grpc-go releases")
}
}
tlsInfo := TLSInfo{
State: cs,
CommonAuthInfo: CommonAuthInfo{
SecurityLevel: PrivacyAndIntegrity,
},
}
id := credinternal.SPIFFEIDFromState(conn.ConnectionState())
if id != nil {
tlsInfo.SPIFFEID = id
}
return credinternal.WrapSyscallConn(rawConn, conn), tlsInfo, nil
}
func (c *tlsCreds) Clone() TransportCredentials {
return NewTLS(c.config)
}
func (c *tlsCreds) OverrideServerName(serverNameOverride string) error {
c.config.ServerName = serverNameOverride
return nil
}
// The following cipher suites are forbidden for use with HTTP/2 by
// https://datatracker.ietf.org/doc/html/rfc7540#appendix-A
var tls12ForbiddenCipherSuites = map[uint16]struct{}{
tls.TLS_RSA_WITH_AES_128_CBC_SHA: {},
tls.TLS_RSA_WITH_AES_256_CBC_SHA: {},
tls.TLS_RSA_WITH_AES_128_GCM_SHA256: {},
tls.TLS_RSA_WITH_AES_256_GCM_SHA384: {},
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA: {},
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA: {},
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA: {},
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA: {},
}
// NewTLS uses c to construct a TransportCredentials based on TLS.
func NewTLS(c *tls.Config) TransportCredentials {
tc := &tlsCreds{credinternal.CloneTLSConfig(c)}
tc.config.NextProtos = credinternal.AppendH2ToNextProtos(tc.config.NextProtos)
// If the user did not configure a MinVersion and did not configure a
// MaxVersion < 1.2, use MinVersion=1.2, which is required by
// https://datatracker.ietf.org/doc/html/rfc7540#section-9.2
if tc.config.MinVersion == 0 && (tc.config.MaxVersion == 0 || tc.config.MaxVersion >= tls.VersionTLS12) {
tc.config.MinVersion = tls.VersionTLS12
}
// If the user did not configure CipherSuites, use all "secure" cipher
// suites reported by the TLS package, but remove some explicitly forbidden
// by https://datatracker.ietf.org/doc/html/rfc7540#appendix-A
if tc.config.CipherSuites == nil {
for _, cs := range tls.CipherSuites() {
if _, ok := tls12ForbiddenCipherSuites[cs.ID]; !ok {
tc.config.CipherSuites = append(tc.config.CipherSuites, cs.ID)
}
}
}
return tc
}
// NewClientTLSFromCert constructs TLS credentials from the provided root
// certificate authority certificate(s) to validate server connections. If
// certificates to establish the identity of the client need to be included in
// the credentials (eg: for mTLS), use NewTLS instead, where a complete
// tls.Config can be specified.
// serverNameOverride is for testing only. If set to a non empty string,
// it will override the virtual host name of authority (e.g. :authority header
// field) in requests.
func NewClientTLSFromCert(cp *x509.CertPool, serverNameOverride string) TransportCredentials {
return NewTLS(&tls.Config{ServerName: serverNameOverride, RootCAs: cp})
}
// NewClientTLSFromFile constructs TLS credentials from the provided root
// certificate authority certificate file(s) to validate server connections. If
// certificates to establish the identity of the client need to be included in
// the credentials (eg: for mTLS), use NewTLS instead, where a complete
// tls.Config can be specified.
// serverNameOverride is for testing only. If set to a non empty string,
// it will override the virtual host name of authority (e.g. :authority header
// field) in requests.
func NewClientTLSFromFile(certFile, serverNameOverride string) (TransportCredentials, error) {
b, err := os.ReadFile(certFile)
if err != nil {
return nil, err
}
cp := x509.NewCertPool()
if !cp.AppendCertsFromPEM(b) {
return nil, fmt.Errorf("credentials: failed to append certificates")
}
return NewTLS(&tls.Config{ServerName: serverNameOverride, RootCAs: cp}), nil
}
// NewServerTLSFromCert constructs TLS credentials from the input certificate for server.
func NewServerTLSFromCert(cert *tls.Certificate) TransportCredentials {
return NewTLS(&tls.Config{Certificates: []tls.Certificate{*cert}})
}
// NewServerTLSFromFile constructs TLS credentials from the input certificate file and key
// file for server.
func NewServerTLSFromFile(certFile, keyFile string) (TransportCredentials, error) {
cert, err := tls.LoadX509KeyPair(certFile, keyFile)
if err != nil {
return nil, err
}
return NewTLS(&tls.Config{Certificates: []tls.Certificate{cert}}), nil
}
// TLSChannelzSecurityValue defines the struct that TLS protocol should return
// from GetSecurityValue(), containing security info like cipher and certificate used.
//
// # Experimental
//
// Notice: This type is EXPERIMENTAL and may be changed or removed in a
// later release.
type TLSChannelzSecurityValue struct {
ChannelzSecurityValue
StandardName string
LocalCertificate []byte
RemoteCertificate []byte
}