grpc: google.golang.org/grpc/credentials Index | Files | Directories

package credentials

import "google.golang.org/grpc/credentials"

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.

Index

Package Files

credentials.go tls13.go

Variables

var ErrConnDispatched = errors.New("credentials: rawConn is dispatched out of gRPC")

ErrConnDispatched indicates that rawConn has been dispatched out of gRPC and the caller should not close rawConn.

type AuthInfo Uses

type AuthInfo interface {
    AuthType() string
}

AuthInfo defines the common interface for the auth information the users are interested in.

type Bundle Uses

type Bundle interface {
    TransportCredentials() TransportCredentials
    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)
}

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 ChannelzSecurityInfo Uses

type ChannelzSecurityInfo interface {
    GetSecurityValue() ChannelzSecurityValue
}

ChannelzSecurityInfo defines the interface that security protocols should implement in order to provide security info to channelz.

type ChannelzSecurityValue Uses

type ChannelzSecurityValue interface {
    // contains filtered or unexported methods
}

ChannelzSecurityValue defines the interface that GetSecurityValue() return value should satisfy. This interface should only be satisfied by *TLSChannelzSecurityValue and *OtherChannelzSecurityValue.

type OtherChannelzSecurityValue Uses

type OtherChannelzSecurityValue struct {
    ChannelzSecurityValue
    Name  string
    Value proto.Message
}

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.

type PerRPCCredentials Uses

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. 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
}

PerRPCCredentials defines the common interface for the credentials which need to attach security information to every RPC (e.g., oauth2).

type ProtocolInfo Uses

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.
    SecurityVersion string
    // ServerName is the user-configured server name.
    ServerName string
}

ProtocolInfo provides information regarding the gRPC wire protocol version, security protocol, security protocol version in use, server name, etc.

type RequestInfo Uses

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
}

RequestInfo contains request data attached to the context passed to GetRequestMetadata calls.

This API is experimental.

func RequestInfoFromContext Uses

func RequestInfoFromContext(ctx context.Context) (ri RequestInfo, ok bool)

RequestInfoFromContext extracts the RequestInfo from the context if it exists.

This API is experimental.

type TLSChannelzSecurityValue Uses

type TLSChannelzSecurityValue struct {
    ChannelzSecurityValue
    StandardName      string
    LocalCertificate  []byte
    RemoteCertificate []byte
}

TLSChannelzSecurityValue defines the struct that TLS protocol should return from GetSecurityValue(), containing security info like cipher and certificate used.

type TLSInfo Uses

type TLSInfo struct {
    State tls.ConnectionState
}

TLSInfo contains the auth information for a TLS authenticated connection. It implements the AuthInfo interface.

func (TLSInfo) AuthType Uses

func (t TLSInfo) AuthType() string

AuthType returns the type of TLSInfo as a string.

func (TLSInfo) GetSecurityValue Uses

func (t TLSInfo) GetSecurityValue() ChannelzSecurityValue

GetSecurityValue returns security info requested by channelz.

type TransportCredentials Uses

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.
    // 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.
    //
    // 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.
    //
    // 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 overrides the server name used to verify the hostname on the returned certificates from the server.
    // gRPC internals also use it to override the virtual hosting name if it is set.
    // It must be called before dialing. Currently, this is only used by grpclb.
    OverrideServerName(string) error
}

TransportCredentials defines the common interface for all the live gRPC wire protocols and supported transport security protocols (e.g., TLS, SSL).

func NewClientTLSFromCert Uses

func NewClientTLSFromCert(cp *x509.CertPool, serverNameOverride string) TransportCredentials

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 NewClientTLSFromFile Uses

func NewClientTLSFromFile(certFile, serverNameOverride string) (TransportCredentials, error)

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 NewServerTLSFromCert Uses

func NewServerTLSFromCert(cert *tls.Certificate) TransportCredentials

NewServerTLSFromCert constructs TLS credentials from the input certificate for server.

func NewServerTLSFromFile Uses

func NewServerTLSFromFile(certFile, keyFile string) (TransportCredentials, error)

NewServerTLSFromFile constructs TLS credentials from the input certificate file and key file for server.

func NewTLS Uses

func NewTLS(c *tls.Config) TransportCredentials

NewTLS uses c to construct a TransportCredentials based on TLS.

Directories

PathSynopsis
altsPackage alts implements the ALTS credential support by gRPC library, which encapsulates all the state needed by a client to authenticate with a server using ALTS and make various assertions, e.g., about the client's identity, role, or whether it is authorized to make a particular call.
alts/internalPackage internal contains common core functionality for ALTS.
alts/internal/authinfoPackage authinfo provide authentication information returned by handshakers.
alts/internal/connPackage conn contains an implementation of a secure channel created by gRPC handshakers.
alts/internal/handshakerPackage handshaker provides ALTS handshaking functionality for GCP.
alts/internal/handshaker/servicePackage service manages connections between the VM application and the ALTS handshaker service.
alts/internal/proto/grpc_gcp
alts/internal/testutilPackage testutil include useful test utilities for the handshaker.
googlePackage google defines credentials for google cloud services.
internalPackage internal contains credentials-internal code.
oauthPackage oauth implements gRPC credentials using OAuth.

Package credentials imports 10 packages (graph) and is imported by 1959 packages. Updated 2019-10-11. Refresh now. Tools for package owners.