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vendor protobuf & grpc

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Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
This commit is contained in:
Akihiro Suda
2020-02-25 14:27:11 +09:00
parent 9b4967bd6b
commit 8e448bb279
158 changed files with 12967 additions and 10634 deletions
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275
vendor/google.golang.org/grpc/credentials/credentials.go generated vendored
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@@ -24,16 +24,12 @@ package credentials // import "google.golang.org/grpc/credentials"
import (
"context"
"crypto/tls"
"crypto/x509"
"errors"
"fmt"
"io/ioutil"
"net"
"strings"
"github.com/golang/protobuf/proto"
"google.golang.org/grpc/credentials/internal"
"google.golang.org/grpc/internal"
)
// PerRPCCredentials defines the common interface for the credentials which need to
@@ -45,7 +41,8 @@ type PerRPCCredentials interface {
// context. If a status code is returned, it will be used as the status
// for the RPC. 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.
// 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)
@@ -54,6 +51,48 @@ type PerRPCCredentials interface {
RequireTransportSecurity() bool
}
// SecurityLevel defines the protection level on an established connection.
//
// This API is experimental.
type SecurityLevel int
const (
// NoSecurity indicates a connection is insecure.
// The zero SecurityLevel value is invalid for backward compatibility.
NoSecurity SecurityLevel = iota + 1
// 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 {
@@ -68,6 +107,8 @@ type ProtocolInfo struct {
}
// 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
}
@@ -82,7 +123,8 @@ 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.
// Implementations must use the provided context to implement timely cancellation.
// 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
@@ -92,7 +134,8 @@ type TransportCredentials interface {
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 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)
@@ -125,145 +168,63 @@ type Bundle interface {
NewWithMode(mode string) (Bundle, error)
}
// TLSInfo contains the auth information for a TLS authenticated connection.
// It implements the AuthInfo interface.
type TLSInfo struct {
State tls.ConnectionState
// 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
}
// AuthType returns the type of TLSInfo as a string.
func (t TLSInfo) AuthType() string {
return "tls"
// requestInfoKey is a struct to be used as the key when attaching a RequestInfo to a context object.
type requestInfoKey struct{}
// 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 = ctx.Value(requestInfoKey{}).(RequestInfo)
return
}
// GetSecurityValue returns security info requested by channelz.
func (t TLSInfo) GetSecurityValue() ChannelzSecurityValue {
v := &TLSChannelzSecurityValue{
StandardName: cipherSuiteLookup[t.State.CipherSuite],
// 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 satisified 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(ctx context.Context, level SecurityLevel) error {
type internalInfo interface {
GetCommonAuthInfo() *CommonAuthInfo
}
// 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
ri, _ := RequestInfoFromContext(ctx)
if ri.AuthInfo == nil {
return errors.New("unable to obtain SecurityLevel from context")
}
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 := cloneTLSConfig(c.config)
if cfg.ServerName == "" {
colonPos := strings.LastIndex(authority, ":")
if colonPos == -1 {
colonPos = len(authority)
if ci, ok := ri.AuthInfo.(internalInfo); ok {
// CommonAuthInfo.SecurityLevel has an invalid value.
if ci.GetCommonAuthInfo().SecurityLevel == 0 {
return nil
}
cfg.ServerName = authority[:colonPos]
}
conn := tls.Client(rawConn, cfg)
errChannel := make(chan error, 1)
go func() {
errChannel <- conn.Handshake()
}()
select {
case err := <-errChannel:
if err != nil {
return nil, nil, err
if ci.GetCommonAuthInfo().SecurityLevel < level {
return fmt.Errorf("requires SecurityLevel %v; connection has %v", level, ci.GetCommonAuthInfo().SecurityLevel)
}
case <-ctx.Done():
return nil, nil, ctx.Err()
}
return internal.WrapSyscallConn(rawConn, conn), TLSInfo{conn.ConnectionState()}, nil
}
func (c *tlsCreds) ServerHandshake(rawConn net.Conn) (net.Conn, AuthInfo, error) {
conn := tls.Server(rawConn, c.config)
if err := conn.Handshake(); err != nil {
return nil, nil, err
}
return internal.WrapSyscallConn(rawConn, conn), TLSInfo{conn.ConnectionState()}, nil
}
func (c *tlsCreds) Clone() TransportCredentials {
return NewTLS(c.config)
}
func (c *tlsCreds) OverrideServerName(serverNameOverride string) error {
c.config.ServerName = serverNameOverride
// The condition is satisfied or AuthInfo struct does not implement GetCommonAuthInfo() method.
return nil
}
const alpnProtoStrH2 = "h2"
func appendH2ToNextProtos(ps []string) []string {
for _, p := range ps {
if p == alpnProtoStrH2 {
return ps
}
func init() {
internal.NewRequestInfoContext = func(ctx context.Context, ri RequestInfo) context.Context {
return context.WithValue(ctx, requestInfoKey{}, ri)
}
ret := make([]string, 0, len(ps)+1)
ret = append(ret, ps...)
return append(ret, alpnProtoStrH2)
}
// NewTLS uses c to construct a TransportCredentials based on TLS.
func NewTLS(c *tls.Config) TransportCredentials {
tc := &tlsCreds{cloneTLSConfig(c)}
tc.config.NextProtos = appendH2ToNextProtos(tc.config.NextProtos)
return tc
}
// NewClientTLSFromCert constructs TLS credentials from the input certificate for client.
// 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 input certificate file for client.
// 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 := ioutil.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
}
// 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
}
@@ -271,66 +232,20 @@ type ChannelzSecurityInfo interface {
// 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()
}
// TLSChannelzSecurityValue defines the struct that TLS protocol should return
// from GetSecurityValue(), containing security info like cipher and certificate used.
type TLSChannelzSecurityValue struct {
ChannelzSecurityValue
StandardName string
LocalCertificate []byte
RemoteCertificate []byte
}
// 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
}
var cipherSuiteLookup = map[uint16]string{
tls.TLS_RSA_WITH_RC4_128_SHA: "TLS_RSA_WITH_RC4_128_SHA",
tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA: "TLS_RSA_WITH_3DES_EDE_CBC_SHA",
tls.TLS_RSA_WITH_AES_128_CBC_SHA: "TLS_RSA_WITH_AES_128_CBC_SHA",
tls.TLS_RSA_WITH_AES_256_CBC_SHA: "TLS_RSA_WITH_AES_256_CBC_SHA",
tls.TLS_RSA_WITH_AES_128_GCM_SHA256: "TLS_RSA_WITH_AES_128_GCM_SHA256",
tls.TLS_RSA_WITH_AES_256_GCM_SHA384: "TLS_RSA_WITH_AES_256_GCM_SHA384",
tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA: "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA",
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA: "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA",
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA: "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA",
tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA: "TLS_ECDHE_RSA_WITH_RC4_128_SHA",
tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA: "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA",
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA: "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA: "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256: "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256: "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384: "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384: "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
tls.TLS_FALLBACK_SCSV: "TLS_FALLBACK_SCSV",
tls.TLS_RSA_WITH_AES_128_CBC_SHA256: "TLS_RSA_WITH_AES_128_CBC_SHA256",
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256: "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256",
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256: "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256",
tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305: "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305",
tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305: "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305",
}
// cloneTLSConfig returns a shallow clone of the exported
// fields of cfg, ignoring the unexported sync.Once, which
// contains a mutex and must not be copied.
//
// If cfg is nil, a new zero tls.Config is returned.
//
// TODO: inline this function if possible.
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
if cfg == nil {
return &tls.Config{}
}
return cfg.Clone()
}