chore: go mod tidy / vendor / make deps

vendor/google.golang.org/grpc/MAINTAINERS.md

@@ -9,21 +9,19 @@ for general contribution guidelines.
 
 ## Maintainers (in alphabetical order)
 
-- [aranjans](https://github.com/aranjans), Google LLC
 - [arjan-bal](https://github.com/arjan-bal), Google LLC
 - [arvindbr8](https://github.com/arvindbr8), Google LLC
 - [atollena](https://github.com/atollena), Datadog, Inc.
 - [dfawley](https://github.com/dfawley), Google LLC
 - [easwars](https://github.com/easwars), Google LLC
-- [erm-g](https://github.com/erm-g), Google LLC
 - [gtcooke94](https://github.com/gtcooke94), Google LLC
-- [purnesh42h](https://github.com/purnesh42h), Google LLC
-- [zasweq](https://github.com/zasweq), Google LLC
 
 ## Emeritus Maintainers (in alphabetical order)
 - [adelez](https://github.com/adelez)
+- [aranjans](https://github.com/aranjans)
 - [canguler](https://github.com/canguler)
 - [cesarghali](https://github.com/cesarghali)
+- [erm-g](https://github.com/erm-g)
 - [iamqizhao](https://github.com/iamqizhao)
 - [jeanbza](https://github.com/jeanbza)
 - [jtattermusch](https://github.com/jtattermusch)
@@ -32,5 +30,7 @@ for general contribution guidelines.
 - [matt-kwong](https://github.com/matt-kwong)
 - [menghanl](https://github.com/menghanl)
 - [nicolasnoble](https://github.com/nicolasnoble)
+- [purnesh42h](https://github.com/purnesh42h)
 - [srini100](https://github.com/srini100)
 - [yongni](https://github.com/yongni)
+- [zasweq](https://github.com/zasweq)

vendor/google.golang.org/grpc/balancer/endpointsharding/endpointsharding.go

@@ -37,6 +37,8 @@ import (
 	"google.golang.org/grpc/resolver"
 )
 
+var randIntN = rand.IntN
+
 // ChildState is the balancer state of a child along with the endpoint which
 // identifies the child balancer.
 type ChildState struct {
@@ -112,6 +114,21 @@ type endpointSharding struct {
 	mu sync.Mutex
 }
 
+// rotateEndpoints returns a slice of all the input endpoints rotated a random
+// amount.
+func rotateEndpoints(es []resolver.Endpoint) []resolver.Endpoint {
+	les := len(es)
+	if les == 0 {
+		return es
+	}
+	r := randIntN(les)
+	// Make a copy to avoid mutating data beyond the end of es.
+	ret := make([]resolver.Endpoint, les)
+	copy(ret, es[r:])
+	copy(ret[les-r:], es[:r])
+	return ret
+}
+
 // UpdateClientConnState creates a child for new endpoints and deletes children
 // for endpoints that are no longer present. It also updates all the children,
 // and sends a single synchronous update of the childrens' aggregated state at
@@ -133,7 +150,7 @@ func (es *endpointSharding) UpdateClientConnState(state balancer.ClientConnState
 	newChildren := resolver.NewEndpointMap[*balancerWrapper]()
 
 	// Update/Create new children.
-	for _, endpoint := range state.ResolverState.Endpoints {
+	for _, endpoint := range rotateEndpoints(state.ResolverState.Endpoints) {
 		if _, ok := newChildren.Get(endpoint); ok {
 			// Endpoint child was already created, continue to avoid duplicate
 			// update.
@@ -279,7 +296,7 @@ func (es *endpointSharding) updateState() {
 	p := &pickerWithChildStates{
 		pickers:     pickers,
 		childStates: childStates,
-		next:        uint32(rand.IntN(len(pickers))),
+		next:        uint32(randIntN(len(pickers))),
 	}
 	es.cc.UpdateState(balancer.State{
 		ConnectivityState: aggState,

vendor/google.golang.org/grpc/balancer/pickfirst/pickfirstleaf/pickfirstleaf.go

@@ -67,21 +67,21 @@ var (
 	disconnectionsMetric = expstats.RegisterInt64Count(expstats.MetricDescriptor{
 		Name:        "grpc.lb.pick_first.disconnections",
 		Description: "EXPERIMENTAL. Number of times the selected subchannel becomes disconnected.",
-		Unit:        "disconnection",
+		Unit:        "{disconnection}",
 		Labels:      []string{"grpc.target"},
 		Default:     false,
 	})
 	connectionAttemptsSucceededMetric = expstats.RegisterInt64Count(expstats.MetricDescriptor{
 		Name:        "grpc.lb.pick_first.connection_attempts_succeeded",
 		Description: "EXPERIMENTAL. Number of successful connection attempts.",
-		Unit:        "attempt",
+		Unit:        "{attempt}",
 		Labels:      []string{"grpc.target"},
 		Default:     false,
 	})
 	connectionAttemptsFailedMetric = expstats.RegisterInt64Count(expstats.MetricDescriptor{
 		Name:        "grpc.lb.pick_first.connection_attempts_failed",
 		Description: "EXPERIMENTAL. Number of failed connection attempts.",
-		Unit:        "attempt",
+		Unit:        "{attempt}",
 		Labels:      []string{"grpc.target"},
 		Default:     false,
 	})

vendor/google.golang.org/grpc/clientconn.go

@@ -208,7 +208,7 @@ func NewClient(target string, opts ...DialOption) (conn *ClientConn, err error)
 	channelz.Infof(logger, cc.channelz, "Channel authority set to %q", cc.authority)
 
 	cc.csMgr = newConnectivityStateManager(cc.ctx, cc.channelz)
-	cc.pickerWrapper = newPickerWrapper(cc.dopts.copts.StatsHandlers)
+	cc.pickerWrapper = newPickerWrapper()
 
 	cc.metricsRecorderList = stats.NewMetricsRecorderList(cc.dopts.copts.StatsHandlers)
 
@@ -1076,13 +1076,6 @@ func (cc *ClientConn) healthCheckConfig() *healthCheckConfig {
 	return cc.sc.healthCheckConfig
 }
 
-func (cc *ClientConn) getTransport(ctx context.Context, failfast bool, method string) (transport.ClientTransport, balancer.PickResult, error) {
-	return cc.pickerWrapper.pick(ctx, failfast, balancer.PickInfo{
-		Ctx:            ctx,
-		FullMethodName: method,
-	})
-}
-
 func (cc *ClientConn) applyServiceConfigAndBalancer(sc *ServiceConfig, configSelector iresolver.ConfigSelector) {
 	if sc == nil {
 		// should never reach here.
@@ -1831,7 +1824,7 @@ func (cc *ClientConn) initAuthority() error {
 	} else if auth, ok := cc.resolverBuilder.(resolver.AuthorityOverrider); ok {
 		cc.authority = auth.OverrideAuthority(cc.parsedTarget)
 	} else if strings.HasPrefix(endpoint, ":") {
-		cc.authority = "localhost" + endpoint
+		cc.authority = "localhost" + encodeAuthority(endpoint)
 	} else {
 		cc.authority = encodeAuthority(endpoint)
 	}

vendor/google.golang.org/grpc/credentials/credentials.go

@@ -96,10 +96,11 @@ 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.
+// ProtocolInfo provides static information regarding transport credentials.
 type ProtocolInfo struct {
 	// ProtocolVersion is the gRPC wire protocol version.
+	//
+	// Deprecated: this is unused by gRPC.
 	ProtocolVersion string
 	// SecurityProtocol is the security protocol in use.
 	SecurityProtocol string
@@ -109,7 +110,16 @@ type ProtocolInfo struct {
 	//
 	// Deprecated: please use Peer.AuthInfo.
 	SecurityVersion string
-	// ServerName is the user-configured server name.
+	// ServerName is the user-configured server name.  If set, this overrides
+	// the default :authority header used for all RPCs on the channel using the
+	// containing credentials, unless grpc.WithAuthority is set on the channel,
+	// in which case that setting will take precedence.
+	//
+	// This must be a valid `:authority` header according to
+	// [RFC3986](https://datatracker.ietf.org/doc/html/rfc3986#section-3.2).
+	//
+	// Deprecated: Users should use grpc.WithAuthority to override the authority
+	// on a channel instead of configuring the credentials.
 	ServerName string
 }
 
@@ -173,12 +183,17 @@ type TransportCredentials interface {
 	// 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.
+	// The provided string should be a valid `:authority` header according to
+	// [RFC3986](https://datatracker.ietf.org/doc/html/rfc3986#section-3.2).
+	//
+	// Deprecated: this method is unused by gRPC.  Users should use
+	// grpc.WithAuthority to override the authority on a channel instead of
+	// configuring the credentials.
 	OverrideServerName(string) error
 }
 

vendor/google.golang.org/grpc/credentials/tls.go

@@ -110,14 +110,14 @@ func (c tlsCreds) Info() ProtocolInfo {
 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
+
+	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() {
@@ -259,9 +259,11 @@ func applyDefaults(c *tls.Config) *tls.Config {
 // 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.
+//
+// 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.  Users should use grpc.WithAuthority passed to grpc.NewClient to
+// override the authority of the client instead.
 func NewClientTLSFromCert(cp *x509.CertPool, serverNameOverride string) TransportCredentials {
 	return NewTLS(&tls.Config{ServerName: serverNameOverride, RootCAs: cp})
 }
@@ -271,9 +273,11 @@ func NewClientTLSFromCert(cp *x509.CertPool, serverNameOverride string) Transpor
 // 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.
+//
+// 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.  Users should use grpc.WithAuthority passed to grpc.NewClient to
+// override the authority of the client instead.
 func NewClientTLSFromFile(certFile, serverNameOverride string) (TransportCredentials, error) {
 	b, err := os.ReadFile(certFile)
 	if err != nil {

vendor/google.golang.org/grpc/dialoptions.go

@@ -608,6 +608,8 @@ func WithChainStreamInterceptor(interceptors ...StreamClientInterceptor) DialOpt
 
 // WithAuthority returns a DialOption that specifies the value to be used as the
 // :authority pseudo-header and as the server name in authentication handshake.
+// This overrides all other ways of setting authority on the channel, but can be
+// overridden per-call by using grpc.CallAuthority.
 func WithAuthority(a string) DialOption {
 	return newFuncDialOption(func(o *dialOptions) {
 		o.authority = a

vendor/google.golang.org/grpc/internal/envconfig/envconfig.go

@@ -26,26 +26,32 @@ import (
 )
 
 var (
-	// TXTErrIgnore is set if TXT errors should be ignored ("GRPC_GO_IGNORE_TXT_ERRORS" is not "false").
+	// EnableTXTServiceConfig is set if the DNS resolver should perform TXT
+	// lookups for service config ("GRPC_ENABLE_TXT_SERVICE_CONFIG" is not
+	// "false").
+	EnableTXTServiceConfig = boolFromEnv("GRPC_ENABLE_TXT_SERVICE_CONFIG", true)
+
+	// TXTErrIgnore is set if TXT errors should be ignored
+	// ("GRPC_GO_IGNORE_TXT_ERRORS" is not "false").
 	TXTErrIgnore = boolFromEnv("GRPC_GO_IGNORE_TXT_ERRORS", true)
+
 	// RingHashCap indicates the maximum ring size which defaults to 4096
 	// entries but may be overridden by setting the environment variable
 	// "GRPC_RING_HASH_CAP".  This does not override the default bounds
 	// checking which NACKs configs specifying ring sizes > 8*1024*1024 (~8M).
 	RingHashCap = uint64FromEnv("GRPC_RING_HASH_CAP", 4096, 1, 8*1024*1024)
+
 	// ALTSMaxConcurrentHandshakes is the maximum number of concurrent ALTS
 	// handshakes that can be performed.
 	ALTSMaxConcurrentHandshakes = uint64FromEnv("GRPC_ALTS_MAX_CONCURRENT_HANDSHAKES", 100, 1, 100)
+
 	// EnforceALPNEnabled is set if TLS connections to servers with ALPN disabled
 	// should be rejected. The HTTP/2 protocol requires ALPN to be enabled, this
 	// option is present for backward compatibility. This option may be overridden
 	// by setting the environment variable "GRPC_ENFORCE_ALPN_ENABLED" to "true"
 	// or "false".
 	EnforceALPNEnabled = boolFromEnv("GRPC_ENFORCE_ALPN_ENABLED", true)
-	// XDSFallbackSupport is the env variable that controls whether support for
-	// xDS fallback is turned on. If this is unset or is false, only the first
-	// xDS server in the list of server configs will be used.
-	XDSFallbackSupport = boolFromEnv("GRPC_EXPERIMENTAL_XDS_FALLBACK", true)
+
 	// NewPickFirstEnabled is set if the new pickfirst leaf policy is to be used
 	// instead of the exiting pickfirst implementation. This can be disabled by
 	// setting the environment variable "GRPC_EXPERIMENTAL_ENABLE_NEW_PICK_FIRST"

vendor/google.golang.org/grpc/internal/internal.go

@@ -182,35 +182,6 @@ var (
 	// other features, including the CSDS service.
 	NewXDSResolverWithClientForTesting any // func(xdsclient.XDSClient) (resolver.Builder, error)
 
-	// RegisterRLSClusterSpecifierPluginForTesting registers the RLS Cluster
-	// Specifier Plugin for testing purposes, regardless of the XDSRLS environment
-	// variable.
-	//
-	// TODO: Remove this function once the RLS env var is removed.
-	RegisterRLSClusterSpecifierPluginForTesting func()
-
-	// UnregisterRLSClusterSpecifierPluginForTesting unregisters the RLS Cluster
-	// Specifier Plugin for testing purposes. This is needed because there is no way
-	// to unregister the RLS Cluster Specifier Plugin after registering it solely
-	// for testing purposes using RegisterRLSClusterSpecifierPluginForTesting().
-	//
-	// TODO: Remove this function once the RLS env var is removed.
-	UnregisterRLSClusterSpecifierPluginForTesting func()
-
-	// RegisterRBACHTTPFilterForTesting registers the RBAC HTTP Filter for testing
-	// purposes, regardless of the RBAC environment variable.
-	//
-	// TODO: Remove this function once the RBAC env var is removed.
-	RegisterRBACHTTPFilterForTesting func()
-
-	// UnregisterRBACHTTPFilterForTesting unregisters the RBAC HTTP Filter for
-	// testing purposes. This is needed because there is no way to unregister the
-	// HTTP Filter after registering it solely for testing purposes using
-	// RegisterRBACHTTPFilterForTesting().
-	//
-	// TODO: Remove this function once the RBAC env var is removed.
-	UnregisterRBACHTTPFilterForTesting func()
-
 	// ORCAAllowAnyMinReportingInterval is for examples/orca use ONLY.
 	ORCAAllowAnyMinReportingInterval any // func(so *orca.ServiceOptions)
 

vendor/google.golang.org/grpc/internal/resolver/dns/dns_resolver.go

@@ -132,13 +132,13 @@ func (b *dnsBuilder) Build(target resolver.Target, cc resolver.ClientConn, opts
 	// DNS address (non-IP).
 	ctx, cancel := context.WithCancel(context.Background())
 	d := &dnsResolver{
-		host:                 host,
-		port:                 port,
-		ctx:                  ctx,
-		cancel:               cancel,
-		cc:                   cc,
-		rn:                   make(chan struct{}, 1),
-		disableServiceConfig: opts.DisableServiceConfig,
+		host:                host,
+		port:                port,
+		ctx:                 ctx,
+		cancel:              cancel,
+		cc:                  cc,
+		rn:                  make(chan struct{}, 1),
+		enableServiceConfig: envconfig.EnableTXTServiceConfig && !opts.DisableServiceConfig,
 	}
 
 	d.resolver, err = internal.NewNetResolver(target.URL.Host)
@@ -181,8 +181,8 @@ type dnsResolver struct {
 	// finishes, race detector sometimes will warn lookup (READ the lookup
 	// function pointers) inside watcher() goroutine has data race with
 	// replaceNetFunc (WRITE the lookup function pointers).
-	wg                   sync.WaitGroup
-	disableServiceConfig bool
+	wg                  sync.WaitGroup
+	enableServiceConfig bool
 }
 
 // ResolveNow invoke an immediate resolution of the target that this
@@ -346,7 +346,7 @@ func (d *dnsResolver) lookup() (*resolver.State, error) {
 	if len(srv) > 0 {
 		state = grpclbstate.Set(state, &grpclbstate.State{BalancerAddresses: srv})
 	}
-	if !d.disableServiceConfig {
+	if d.enableServiceConfig {
 		state.ServiceConfig = d.lookupTXT(ctx)
 	}
 	return &state, nil

vendor/google.golang.org/grpc/internal/transport/handler_server.go

@@ -277,11 +277,13 @@ func (ht *serverHandlerTransport) writeStatus(s *ServerStream, st *status.Status
 	if err == nil { // transport has not been closed
 		// Note: The trailer fields are compressed with hpack after this call returns.
 		// No WireLength field is set here.
+		s.hdrMu.Lock()
 		for _, sh := range ht.stats {
 			sh.HandleRPC(s.Context(), &stats.OutTrailer{
 				Trailer: s.trailer.Copy(),
 			})
 		}
+		s.hdrMu.Unlock()
 	}
 	ht.Close(errors.New("finished writing status"))
 	return err

vendor/google.golang.org/grpc/internal/transport/http2_server.go

@@ -1353,10 +1353,10 @@ func (t *http2Server) closeStream(s *ServerStream, rst bool, rstCode http2.ErrCo
 	// called to interrupt the potential blocking on other goroutines.
 	s.cancel()
 
-	oldState := s.swapState(streamDone)
-	if oldState == streamDone {
-		return
-	}
+	// We can't return early even if the stream's state is "done" as the state
+	// might have been set by the `finishStream` method. Deleting the stream via
+	// `finishStream` can get blocked on flow control.
+	s.swapState(streamDone)
 	t.deleteStream(s, eosReceived)
 
 	t.controlBuf.put(&cleanupStream{

vendor/google.golang.org/grpc/picker_wrapper.go

@@ -29,7 +29,6 @@ import (
 	"google.golang.org/grpc/internal/channelz"
 	istatus "google.golang.org/grpc/internal/status"
 	"google.golang.org/grpc/internal/transport"
-	"google.golang.org/grpc/stats"
 	"google.golang.org/grpc/status"
 )
 
@@ -48,14 +47,11 @@ type pickerGeneration struct {
 // actions and unblock when there's a picker update.
 type pickerWrapper struct {
 	// If pickerGen holds a nil pointer, the pickerWrapper is closed.
-	pickerGen     atomic.Pointer[pickerGeneration]
-	statsHandlers []stats.Handler // to record blocking picker calls
+	pickerGen atomic.Pointer[pickerGeneration]
 }
 
-func newPickerWrapper(statsHandlers []stats.Handler) *pickerWrapper {
-	pw := &pickerWrapper{
-		statsHandlers: statsHandlers,
-	}
+func newPickerWrapper() *pickerWrapper {
+	pw := &pickerWrapper{}
 	pw.pickerGen.Store(&pickerGeneration{
 		blockingCh: make(chan struct{}),
 	})
@@ -93,6 +89,12 @@ func doneChannelzWrapper(acbw *acBalancerWrapper, result *balancer.PickResult) {
 	}
 }
 
+type pick struct {
+	transport transport.ClientTransport // the selected transport
+	result    balancer.PickResult       // the contents of the pick from the LB policy
+	blocked   bool                      // set if a picker call queued for a new picker
+}
+
 // pick returns the transport that will be used for the RPC.
 // It may block in the following cases:
 // - there's no picker
@@ -100,15 +102,16 @@ func doneChannelzWrapper(acbw *acBalancerWrapper, result *balancer.PickResult) {
 // - the current picker returns other errors and failfast is false.
 // - the subConn returned by the current picker is not READY
 // When one of these situations happens, pick blocks until the picker gets updated.
-func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.PickInfo) (transport.ClientTransport, balancer.PickResult, error) {
+func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.PickInfo) (pick, error) {
 	var ch chan struct{}
 
 	var lastPickErr error
+	pickBlocked := false
 
 	for {
 		pg := pw.pickerGen.Load()
 		if pg == nil {
-			return nil, balancer.PickResult{}, ErrClientConnClosing
+			return pick{}, ErrClientConnClosing
 		}
 		if pg.picker == nil {
 			ch = pg.blockingCh
@@ -127,9 +130,9 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
 				}
 				switch ctx.Err() {
 				case context.DeadlineExceeded:
-					return nil, balancer.PickResult{}, status.Error(codes.DeadlineExceeded, errStr)
+					return pick{}, status.Error(codes.DeadlineExceeded, errStr)
 				case context.Canceled:
-					return nil, balancer.PickResult{}, status.Error(codes.Canceled, errStr)
+					return pick{}, status.Error(codes.Canceled, errStr)
 				}
 			case <-ch:
 			}
@@ -145,9 +148,7 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
 		// In the second case, the only way it will get to this conditional is
 		// if there is a new picker.
 		if ch != nil {
-			for _, sh := range pw.statsHandlers {
-				sh.HandleRPC(ctx, &stats.PickerUpdated{})
-			}
+			pickBlocked = true
 		}
 
 		ch = pg.blockingCh
@@ -164,7 +165,7 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
 				if istatus.IsRestrictedControlPlaneCode(st) {
 					err = status.Errorf(codes.Internal, "received picker error with illegal status: %v", err)
 				}
-				return nil, balancer.PickResult{}, dropError{error: err}
+				return pick{}, dropError{error: err}
 			}
 			// For all other errors, wait for ready RPCs should block and other
 			// RPCs should fail with unavailable.
@@ -172,7 +173,7 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
 				lastPickErr = err
 				continue
 			}
-			return nil, balancer.PickResult{}, status.Error(codes.Unavailable, err.Error())
+			return pick{}, status.Error(codes.Unavailable, err.Error())
 		}
 
 		acbw, ok := pickResult.SubConn.(*acBalancerWrapper)
@@ -183,9 +184,8 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
 		if t := acbw.ac.getReadyTransport(); t != nil {
 			if channelz.IsOn() {
 				doneChannelzWrapper(acbw, &pickResult)
-				return t, pickResult, nil
 			}
-			return t, pickResult, nil
+			return pick{transport: t, result: pickResult, blocked: pickBlocked}, nil
 		}
 		if pickResult.Done != nil {
 			// Calling done with nil error, no bytes sent and no bytes received.

vendor/google.golang.org/grpc/resolver/resolver.go

@@ -332,6 +332,11 @@ type AuthorityOverrider interface {
 	// OverrideAuthority returns the authority to use for a ClientConn with the
 	// given target. The implementation must generate it without blocking,
 	// typically in line, and must keep it unchanged.
+	//
+	// The returned string must be a valid ":authority" header value, i.e. be
+	// encoded according to
+	// [RFC3986](https://datatracker.ietf.org/doc/html/rfc3986#section-3.2) as
+	// necessary.
 	OverrideAuthority(Target) string
 }
 

vendor/google.golang.org/grpc/server.go

@@ -1598,6 +1598,7 @@ func (s *Server) processStreamingRPC(ctx context.Context, stream *transport.Serv
 		s:                     stream,
 		p:                     &parser{r: stream, bufferPool: s.opts.bufferPool},
 		codec:                 s.getCodec(stream.ContentSubtype()),
+		desc:                  sd,
 		maxReceiveMessageSize: s.opts.maxReceiveMessageSize,
 		maxSendMessageSize:    s.opts.maxSendMessageSize,
 		trInfo:                trInfo,

vendor/google.golang.org/grpc/stats/stats.go

@@ -64,15 +64,21 @@ func (s *Begin) IsClient() bool { return s.Client }
 
 func (s *Begin) isRPCStats() {}
 
-// PickerUpdated indicates that the LB policy provided a new picker while the
-// RPC was waiting for one.
-type PickerUpdated struct{}
+// DelayedPickComplete indicates that the RPC is unblocked following a delay in
+// selecting a connection for the call.
+type DelayedPickComplete struct{}
 
-// IsClient indicates if the stats information is from client side. Only Client
-// Side interfaces with a Picker, thus always returns true.
-func (*PickerUpdated) IsClient() bool { return true }
+// IsClient indicates DelayedPickComplete is available on the client.
+func (*DelayedPickComplete) IsClient() bool { return true }
 
-func (*PickerUpdated) isRPCStats() {}
+func (*DelayedPickComplete) isRPCStats() {}
+
+// PickerUpdated indicates that the RPC is unblocked following a delay in
+// selecting a connection for the call.
+//
+// Deprecated: will be removed in a future release; use DelayedPickComplete
+// instead.
+type PickerUpdated = DelayedPickComplete
 
 // InPayload contains stats about an incoming payload.
 type InPayload struct {

vendor/google.golang.org/grpc/stream.go

@@ -469,8 +469,9 @@ func (cs *clientStream) newAttemptLocked(isTransparent bool) (*csAttempt, error)
 func (a *csAttempt) getTransport() error {
 	cs := a.cs
 
-	var err error
-	a.transport, a.pickResult, err = cs.cc.getTransport(a.ctx, cs.callInfo.failFast, cs.callHdr.Method)
+	pickInfo := balancer.PickInfo{Ctx: a.ctx, FullMethodName: cs.callHdr.Method}
+	pick, err := cs.cc.pickerWrapper.pick(a.ctx, cs.callInfo.failFast, pickInfo)
+	a.transport, a.pickResult = pick.transport, pick.result
 	if err != nil {
 		if de, ok := err.(dropError); ok {
 			err = de.error
@@ -481,6 +482,11 @@ func (a *csAttempt) getTransport() error {
 	if a.trInfo != nil {
 		a.trInfo.firstLine.SetRemoteAddr(a.transport.RemoteAddr())
 	}
+	if pick.blocked {
+		for _, sh := range a.statsHandlers {
+			sh.HandleRPC(a.ctx, &stats.DelayedPickComplete{})
+		}
+	}
 	return nil
 }
 
@@ -1580,6 +1586,7 @@ type serverStream struct {
 	s     *transport.ServerStream
 	p     *parser
 	codec baseCodec
+	desc  *StreamDesc
 
 	compressorV0   Compressor
 	compressorV1   encoding.Compressor
@@ -1588,6 +1595,8 @@ type serverStream struct {
 
 	sendCompressorName string
 
+	recvFirstMsg bool // set after the first message is received
+
 	maxReceiveMessageSize int
 	maxSendMessageSize    int
 	trInfo                *traceInfo
@@ -1774,6 +1783,10 @@ func (ss *serverStream) RecvMsg(m any) (err error) {
 					binlog.Log(ss.ctx, chc)
 				}
 			}
+			// Received no request msg for non-client streaming rpcs.
+			if !ss.desc.ClientStreams && !ss.recvFirstMsg {
+				return status.Error(codes.Internal, "cardinality violation: received no request message from non-client-streaming RPC")
+			}
 			return err
 		}
 		if err == io.ErrUnexpectedEOF {
@@ -1781,6 +1794,7 @@ func (ss *serverStream) RecvMsg(m any) (err error) {
 		}
 		return toRPCErr(err)
 	}
+	ss.recvFirstMsg = true
 	if len(ss.statsHandler) != 0 {
 		for _, sh := range ss.statsHandler {
 			sh.HandleRPC(ss.s.Context(), &stats.InPayload{
@@ -1800,7 +1814,19 @@ func (ss *serverStream) RecvMsg(m any) (err error) {
 			binlog.Log(ss.ctx, cm)
 		}
 	}
-	return nil
+
+	if ss.desc.ClientStreams {
+		// Subsequent messages should be received by subsequent RecvMsg calls.
+		return nil
+	}
+	// Special handling for non-client-stream rpcs.
+	// This recv expects EOF or errors, so we don't collect inPayload.
+	if err := recv(ss.p, ss.codec, ss.s, ss.decompressorV0, m, ss.maxReceiveMessageSize, nil, ss.decompressorV1, true); err == io.EOF {
+		return nil
+	} else if err != nil {
+		return err
+	}
+	return status.Error(codes.Internal, "cardinality violation: received multiple request messages for non-client-streaming RPC")
 }
 
 // MethodFromServerStream returns the method string for the input stream.

vendor/google.golang.org/grpc/version.go

@@ -19,4 +19,4 @@
 package grpc
 
 // Version is the current grpc version.
-const Version = "1.74.2"
+const Version = "1.75.1"