Release 2022.5.0

This commit adds the tunnel details to RPC register connection response
so we can have access to some of the details associacted to the tunnel
that only the edge knows.

Currently this is limited to knowing if the tunnel is remotely managed
or not. In the future we could extend this with more information.

.teamcity/update-homebrew-core.sh

@@ -19,5 +19,8 @@ eval "$(tmp/homebrew/bin/brew shellenv)"
 brew update --force --quiet
 chmod -R go-w "$(brew --prefix)/share/zsh"
 
+git config user.name "cloudflare-warp-bot"
+git config user.email "warp-bot@cloudflare.com"
+
 # bump formula pr
 brew bump-formula-pr cloudflared --version="$VERSION"

RELEASE_NOTES

@@ -1,3 +1,16 @@
+2022.5.0
+- 2022-05-02 TUN-6158: Update golang.org/x/crypto
+- 2022-04-20 VULN-8383 Bump yaml.v2 to yaml.v3
+- 2022-04-21 TUN-6123: For a given connection with edge, close all datagram sessions through this connection when it's closed
+- 2022-04-20 TUN-6015: Add RPC method for pushing local config
+- 2022-04-21 TUN-6130: Fix vendoring due to case sensitive typo in package
+- 2022-04-27 TUN-6142: Add tunnel details support to RPC
+- 2022-04-28 TUN-6014: Add remote config flag as default feature
+- 2022-04-12 TUN-6000: Another fix for publishing to brew core
+- 2022-04-11 TUN-5990: Add otlp span export to response header
+- 2022-04-19 TUN-6070: First connection retries other edge IPs if the error is quic timeout(likely due to firewall blocking UDP)
+- 2022-04-11 TUN-6030: Add ttfb span for origin http request
+
 2022.4.1
 - 2022-04-11 TUN-6035: Reduce buffer size when proxying data
 - 2022-04-11 TUN-6038: Reduce buffer size used for proxying data

cmd/cloudflared/main.go

@@ -21,6 +21,7 @@ import (
 	"github.com/cloudflare/cloudflared/logger"
 	"github.com/cloudflare/cloudflared/metrics"
 	"github.com/cloudflare/cloudflared/overwatch"
+	"github.com/cloudflare/cloudflared/tracing"
 	"github.com/cloudflare/cloudflared/watcher"
 )
 
@@ -86,6 +87,7 @@ func main() {
 	tunnel.Init(bInfo, graceShutdownC) // we need this to support the tunnel sub command...
 	access.Init(graceShutdownC)
 	updater.Init(Version)
+	tracing.Init(Version)
 	runApp(app, graceShutdownC)
 }
 

cmd/cloudflared/tunnel/configuration.go

@@ -41,7 +41,8 @@ var (
 
 	LogFieldHostname = "hostname"
 
-	secretFlags = [2]*altsrc.StringFlag{credentialsContentsFlag, tunnelTokenFlag}
+	secretFlags     = [2]*altsrc.StringFlag{credentialsContentsFlag, tunnelTokenFlag}
+	defaultFeatures = []string{supervisor.FeatureAllowRemoteConfig, supervisor.FeatureSerializedHeaders}
 )
 
 // returns the first path that contains a cert.pem file. If none of the DefaultConfigSearchDirectories
@@ -225,7 +226,7 @@ func prepareTunnelConfig(
 			return nil, nil, errors.Wrap(err, "can't generate connector UUID")
 		}
 		log.Info().Msgf("Generated Connector ID: %s", clientUUID)
-		features := append(c.StringSlice("features"), supervisor.FeatureSerializedHeaders)
+		features := append(c.StringSlice("features"), defaultFeatures...)
 		if c.IsSet(TunnelTokenFlag) {
 			if transportProtocol == connection.AutoSelectFlag {
 				protocolFetcher = func() (edgediscovery.ProtocolPercents, error) {
@@ -243,7 +244,6 @@ func prepareTunnelConfig(
 					return preferQuic, nil
 				}
 			}
-			features = append(features, supervisor.FeatureAllowRemoteConfig)
 			log.Info().Msg("Will be fetching remotely managed configuration from Cloudflare API. Defaulting to protocol: quic")
 		}
 		namedTunnel.Client = tunnelpogs.ClientInfo{

config/configuration.go

@@ -15,7 +15,7 @@ import (
 	"github.com/pkg/errors"
 	"github.com/rs/zerolog"
 	"github.com/urfave/cli/v2"
-	yaml "gopkg.in/yaml.v2"
+	yaml "gopkg.in/yaml.v3"
 
 	"github.com/cloudflare/cloudflared/validation"
 )
@@ -392,7 +392,7 @@ func ReadConfigFile(c *cli.Context, log *zerolog.Logger) (settings *configFileSe
 	// Parse it again, with strict mode, to find warnings.
 	if file, err := os.Open(configFile); err == nil {
 		decoder := yaml.NewDecoder(file)
-		decoder.SetStrict(true)
+		decoder.KnownFields(true)
 		var unusedConfig configFileSettings
 		if err := decoder.Decode(&unusedConfig); err != nil {
 			warnings = err.Error()

connection/http2.go

@@ -231,6 +231,12 @@ func (rp *http2RespWriter) WriteRespHeaders(status int, header http.Header) erro
 			dest[name] = values
 		}
 
+		if h2name == tracing.IntCloudflaredTracingHeader {
+			// Add cf-int-cloudflared-tracing header outside of serialized userHeaders
+			rp.w.Header()[tracing.CanonicalCloudflaredTracingHeader] = values
+			continue
+		}
+
 		if !IsControlResponseHeader(h2name) || IsWebsocketClientHeader(h2name) {
 			// User headers, on the other hand, must all be serialized so that
 			// HTTP/2 header validation won't be applied to HTTP/1 header values

datagramsession/manager.go

@@ -2,6 +2,7 @@ package datagramsession
 
 import (
 	"context"
+	"fmt"
 	"io"
 	"time"
 
@@ -16,6 +17,10 @@ const (
 	defaultReqTimeout   = time.Second * 5
 )
 
+var (
+	errSessionManagerClosed = fmt.Errorf("session manager closed")
+)
+
 // Manager defines the APIs to manage sessions from the same transport.
 type Manager interface {
 	// Serve starts the event loop
@@ -30,6 +35,7 @@ type manager struct {
 	registrationChan   chan *registerSessionEvent
 	unregistrationChan chan *unregisterSessionEvent
 	datagramChan       chan *newDatagram
+	closedChan         chan struct{}
 	transport          transport
 	sessions           map[uuid.UUID]*Session
 	log                *zerolog.Logger
@@ -43,6 +49,7 @@ func NewManager(transport transport, log *zerolog.Logger) *manager {
 		unregistrationChan: make(chan *unregisterSessionEvent),
 		// datagramChan is buffered, so it can read more datagrams from transport while the event loop is processing other events
 		datagramChan: make(chan *newDatagram, requestChanCapacity),
+		closedChan:   make(chan struct{}),
 		transport:    transport,
 		sessions:     make(map[uuid.UUID]*Session),
 		log:          log,
@@ -90,7 +97,24 @@ func (m *manager) Serve(ctx context.Context) error {
 			}
 		}
 	})
-	return errGroup.Wait()
+	err := errGroup.Wait()
+	close(m.closedChan)
+	m.shutdownSessions(err)
+	return err
+}
+
+func (m *manager) shutdownSessions(err error) {
+	if err == nil {
+		err = errSessionManagerClosed
+	}
+	closeSessionErr := &errClosedSession{
+		message: err.Error(),
+		// Usually connection with remote has been closed, so set this to true to skip unregistering from remote
+		byRemote: true,
+	}
+	for _, s := range m.sessions {
+		s.close(closeSessionErr)
+	}
 }
 
 func (m *manager) RegisterSession(ctx context.Context, sessionID uuid.UUID, originProxy io.ReadWriteCloser) (*Session, error) {
@@ -104,15 +128,33 @@ func (m *manager) RegisterSession(ctx context.Context, sessionID uuid.UUID, orig
 	case m.registrationChan <- event:
 		session := <-event.resultChan
 		return session, nil
+	// Once closedChan is closed, manager won't accept more registration because nothing is
+	// reading from registrationChan and it's an unbuffered channel
+	case <-m.closedChan:
+		return nil, errSessionManagerClosed
 	}
 }
 
 func (m *manager) registerSession(ctx context.Context, registration *registerSessionEvent) {
-	session := newSession(registration.sessionID, m.transport, registration.originProxy, m.log)
+	session := m.newSession(registration.sessionID, registration.originProxy)
 	m.sessions[registration.sessionID] = session
 	registration.resultChan <- session
 }
 
+func (m *manager) newSession(id uuid.UUID, dstConn io.ReadWriteCloser) *Session {
+	return &Session{
+		ID:        id,
+		transport: m.transport,
+		dstConn:   dstConn,
+		// activeAtChan has low capacity. It can be full when there are many concurrent read/write. markActive() will
+		// drop instead of blocking because last active time only needs to be an approximation
+		activeAtChan: make(chan time.Time, 2),
+		// capacity is 2 because close() and dstToTransport routine in Serve() can write to this channel
+		closeChan: make(chan error, 2),
+		log:       m.log,
+	}
+}
+
 func (m *manager) UnregisterSession(ctx context.Context, sessionID uuid.UUID, message string, byRemote bool) error {
 	ctx, cancel := context.WithTimeout(ctx, m.timeout)
 	defer cancel()
@@ -129,6 +171,8 @@ func (m *manager) UnregisterSession(ctx context.Context, sessionID uuid.UUID, me
 		return ctx.Err()
 	case m.unregistrationChan <- event:
 		return nil
+	case <-m.closedChan:
+		return errSessionManagerClosed
 	}
 }
 

datagramsession/manager_test.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"net"
+	"sync"
 	"testing"
 	"time"
 
@@ -21,12 +22,8 @@ func TestManagerServe(t *testing.T) {
 		msgs                = 50
 		remoteUnregisterMsg = "eyeball closed connection"
 	)
-	log := zerolog.Nop()
-	transport := &mockQUICTransport{
-		reqChan:  newDatagramChannel(1),
-		respChan: newDatagramChannel(1),
-	}
-	mg := NewManager(transport, &log)
+
+	mg, transport := newTestManager(1)
 
 	eyeballTracker := make(map[uuid.UUID]*datagramChannel)
 	for i := 0; i < sessions; i++ {
@@ -124,12 +121,8 @@ func TestTimeout(t *testing.T) {
 	const (
 		testTimeout = time.Millisecond * 50
 	)
-	log := zerolog.Nop()
-	transport := &mockQUICTransport{
-		reqChan:  newDatagramChannel(1),
-		respChan: newDatagramChannel(1),
-	}
-	mg := NewManager(transport, &log)
+
+	mg, _ := newTestManager(1)
 	mg.timeout = testTimeout
 	ctx := context.Background()
 	sessionID := uuid.New()
@@ -142,6 +135,47 @@ func TestTimeout(t *testing.T) {
 	require.ErrorIs(t, err, context.DeadlineExceeded)
 }
 
+func TestCloseTransportCloseSessions(t *testing.T) {
+	mg, transport := newTestManager(1)
+	ctx := context.Background()
+
+	var wg sync.WaitGroup
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		err := mg.Serve(ctx)
+		require.Error(t, err)
+	}()
+
+	cfdConn, eyeballConn := net.Pipe()
+	session, err := mg.RegisterSession(ctx, uuid.New(), cfdConn)
+	require.NoError(t, err)
+	require.NotNil(t, session)
+
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		_, err := eyeballConn.Write([]byte(t.Name()))
+		require.NoError(t, err)
+		transport.close()
+	}()
+
+	closedByRemote, err := session.Serve(ctx, time.Minute)
+	require.True(t, closedByRemote)
+	require.Error(t, err)
+
+	wg.Wait()
+}
+
+func newTestManager(capacity uint) (*manager, *mockQUICTransport) {
+	log := zerolog.Nop()
+	transport := &mockQUICTransport{
+		reqChan:  newDatagramChannel(capacity),
+		respChan: newDatagramChannel(capacity),
+	}
+	return NewManager(transport, &log), transport
+}
+
 type mockOrigin struct {
 	expectMsgCount int
 	expectedMsg    []byte

datagramsession/session.go

@@ -39,20 +39,6 @@ type Session struct {
 	log          *zerolog.Logger
 }
 
-func newSession(id uuid.UUID, transport transport, dstConn io.ReadWriteCloser, log *zerolog.Logger) *Session {
-	return &Session{
-		ID:        id,
-		transport: transport,
-		dstConn:   dstConn,
-		// activeAtChan has low capacity. It can be full when there are many concurrent read/write. markActive() will
-		// drop instead of blocking because last active time only needs to be an approximation
-		activeAtChan: make(chan time.Time, 2),
-		// capacity is 2 because close() and dstToTransport routine in Serve() can write to this channel
-		closeChan: make(chan error, 2),
-		log:       log,
-	}
-}
-
 func (s *Session) Serve(ctx context.Context, closeAfterIdle time.Duration) (closedByRemote bool, err error) {
 	go func() {
 		// QUIC implementation copies data to another buffer before returning https://github.com/lucas-clemente/quic-go/blob/v0.24.0/session.go#L1967-L1975

datagramsession/session_test.go

@@ -11,7 +11,6 @@ import (
 	"time"
 
 	"github.com/google/uuid"
-	"github.com/rs/zerolog"
 	"github.com/stretchr/testify/require"
 	"golang.org/x/sync/errgroup"
 )
@@ -41,12 +40,9 @@ func testSessionReturns(t *testing.T, closeBy closeMethod, closeAfterIdle time.D
 	sessionID := uuid.New()
 	cfdConn, originConn := net.Pipe()
 	payload := testPayload(sessionID)
-	transport := &mockQUICTransport{
-		reqChan:  newDatagramChannel(1),
-		respChan: newDatagramChannel(1),
-	}
-	log := zerolog.Nop()
-	session := newSession(sessionID, transport, cfdConn, &log)
+
+	mg, _ := newTestManager(1)
+	session := mg.newSession(sessionID, cfdConn)
 
 	ctx, cancel := context.WithCancel(context.Background())
 	sessionDone := make(chan struct{})
@@ -117,12 +113,9 @@ func testActiveSessionNotClosed(t *testing.T, readFromDst bool, writeToDst bool)
 	sessionID := uuid.New()
 	cfdConn, originConn := net.Pipe()
 	payload := testPayload(sessionID)
-	transport := &mockQUICTransport{
-		reqChan:  newDatagramChannel(100),
-		respChan: newDatagramChannel(100),
-	}
-	log := zerolog.Nop()
-	session := newSession(sessionID, transport, cfdConn, &log)
+
+	mg, _ := newTestManager(100)
+	session := mg.newSession(sessionID, cfdConn)
 
 	startTime := time.Now()
 	activeUntil := startTime.Add(activeTime)
@@ -184,7 +177,8 @@ func testActiveSessionNotClosed(t *testing.T, readFromDst bool, writeToDst bool)
 
 func TestMarkActiveNotBlocking(t *testing.T) {
 	const concurrentCalls = 50
-	session := newSession(uuid.New(), nil, nil, nil)
+	mg, _ := newTestManager(1)
+	session := mg.newSession(uuid.New(), nil)
 	var wg sync.WaitGroup
 	wg.Add(concurrentCalls)
 	for i := 0; i < concurrentCalls; i++ {
@@ -199,12 +193,9 @@ func TestMarkActiveNotBlocking(t *testing.T) {
 func TestZeroBytePayload(t *testing.T) {
 	sessionID := uuid.New()
 	cfdConn, originConn := net.Pipe()
-	transport := &mockQUICTransport{
-		reqChan:  newDatagramChannel(1),
-		respChan: newDatagramChannel(1),
-	}
-	log := zerolog.Nop()
-	session := newSession(sessionID, transport, cfdConn, &log)
+
+	mg, transport := newTestManager(1)
+	session := mg.newSession(sessionID, cfdConn)
 
 	ctx, cancel := context.WithCancel(context.Background())
 	errGroup, ctx := errgroup.WithContext(ctx)

go.mod

@@ -35,7 +35,7 @@ require (
 	go.opentelemetry.io/otel/trace v1.6.3
 	go.opentelemetry.io/proto/otlp v0.15.0
 	go.uber.org/automaxprocs v1.4.0
-	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519
+	golang.org/x/crypto v0.0.0-20220427172511-eb4f295cb31f
 	golang.org/x/net v0.0.0-20220114011407-0dd24b26b47d
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
 	golang.org/x/sys v0.0.0-20220114195835-da31bd327af9
@@ -45,6 +45,7 @@ require (
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0
 	gopkg.in/square/go-jose.v2 v2.6.0
 	gopkg.in/yaml.v2 v2.4.0
+	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
 	zombiezen.com/go/capnproto2 v2.18.0+incompatible
 )
 
@@ -101,7 +102,6 @@ require (
 	google.golang.org/genproto v0.0.0-20211223182754-3ac035c7e7cb // indirect
 	google.golang.org/grpc v1.45.0 // indirect
 	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
-	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
 )
 
 replace github.com/urfave/cli/v2 => github.com/ipostelnik/cli/v2 v2.3.1-0.20210324024421-b6ea8234fe3d

go.sum

@@ -104,6 +104,7 @@ github.com/cenkalti/backoff/v4 v4.1.2/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInq
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/certifi/gocertifi v0.0.0-20200211180108-c7c1fbc02894 h1:JLaf/iINcLyjwbtTsCJjc6rtlASgHeIJPrB6QmwURnA=
 github.com/certifi/gocertifi v0.0.0-20200211180108-c7c1fbc02894/go.mod h1:sGbDF6GwGcLpkNXPUTkMRoywsNa/ol15pxFe6ERfguA=
+github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
@@ -343,6 +344,7 @@ github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/ad
 github.com/gregjones/httpcache v0.0.0-20180305231024-9cad4c3443a7/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
 github.com/grpc-ecosystem/grpc-gateway v1.5.0/go.mod h1:RSKVYQBd5MCa4OVpNdGskqpgL2+G+NZTnrVHpWWfpdw=
+github.com/grpc-ecosystem/grpc-gateway v1.16.0 h1:gmcG1KaJ57LophUzW0Hy8NmPhnMZb4M0+kPpLofRdBo=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.7.0 h1:BZHcxBETFHIdVyhyEfOvn/RdU/QGdLI4y34qQGjGWO0=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.7.0/go.mod h1:hgWBS7lorOAVIJEQMi4ZsPv9hVvWI6+ch50m39Pf2Ks=
@@ -522,6 +524,7 @@ github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFR
 github.com/rs/xid v1.2.1/go.mod h1:+uKXf+4Djp6Md1KODXJxgGQPKngRmWyn10oCKFzNHOQ=
 github.com/rs/zerolog v1.20.0 h1:38k9hgtUBdxFwE34yS8rTHmHBa4eN16E4DJlv177LNs=
 github.com/rs/zerolog v1.20.0/go.mod h1:IzD0RJ65iWH0w97OQQebJEvTZYvsCUm9WVLWBQrJRjo=
+github.com/russross/blackfriday v1.5.2 h1:HyvC0ARfnZBqnXwABFeSZHpKvJHJJfPz81GNueLj0oo=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
@@ -633,8 +636,9 @@ golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20201112155050-0c6587e931a9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20210817164053-32db794688a5/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20210920023735-84f357641f63/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 h1:7I4JAnoQBe7ZtJcBaYHi5UtiO8tQHbUSXxL+pnGRANg=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/crypto v0.0.0-20220427172511-eb4f295cb31f h1:OeJjE6G4dgCY4PIXvIRQbE8+RX+uXZyGhUy/ksMGJoc=
+golang.org/x/crypto v0.0.0-20220427172511-eb4f295cb31f/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -720,6 +724,7 @@ golang.org/x/net v0.0.0-20210503060351-7fd8e65b6420/go.mod h1:9nx3DQGgdP8bBQD5qx
 golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20210917221730-978cfadd31cf/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20211209124913-491a49abca63/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20211216030914-fe4d6282115f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20220114011407-0dd24b26b47d h1:1n1fc535VhN8SYtD4cDUyNlfpAF2ROMM9+11equK3hs=

proxy/proxy.go

@@ -11,6 +11,8 @@ import (
 	"github.com/pkg/errors"
 	"github.com/rs/zerolog"
 	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/trace"
 
 	"github.com/cloudflare/cloudflared/carrier"
 	"github.com/cloudflare/cloudflared/cfio"
@@ -72,7 +74,8 @@ func (p *Proxy) ProxyHTTP(
 	lbProbe := connection.IsLBProbeRequest(req)
 	p.appendTagHeaders(req)
 
-	_, ruleSpan := tr.Tracer().Start(req.Context(), "ingress_match")
+	_, ruleSpan := tr.Tracer().Start(req.Context(), "ingress_match",
+		trace.WithAttributes(attribute.String("req-host", req.Host)))
 	rule, ruleNum := p.ingressRules.FindMatchingRule(req.Host, req.URL.Path)
 	logFields := logFields{
 		cfRay:   cfRay,
@@ -87,7 +90,7 @@ func (p *Proxy) ProxyHTTP(
 	case ingress.HTTPOriginProxy:
 		if err := p.proxyHTTPRequest(
 			w,
-			req,
+			tr,
 			originProxy,
 			isWebsocket,
 			rule.Config.DisableChunkedEncoding,
@@ -159,15 +162,15 @@ func ruleField(ing ingress.Ingress, ruleNum int) (ruleID string, srv string) {
 // ProxyHTTPRequest proxies requests of underlying type http and websocket to the origin service.
 func (p *Proxy) proxyHTTPRequest(
 	w connection.ResponseWriter,
-	req *http.Request,
+	tr *tracing.TracedRequest,
 	httpService ingress.HTTPOriginProxy,
 	isWebsocket bool,
 	disableChunkedEncoding bool,
 	fields logFields,
 ) error {
-	roundTripReq := req
+	roundTripReq := tr.Request
 	if isWebsocket {
-		roundTripReq = req.Clone(req.Context())
+		roundTripReq = tr.Clone(tr.Request.Context())
 		roundTripReq.Header.Set("Connection", "Upgrade")
 		roundTripReq.Header.Set("Upgrade", "websocket")
 		roundTripReq.Header.Set("Sec-Websocket-Version", "13")
@@ -177,7 +180,7 @@ func (p *Proxy) proxyHTTPRequest(
 		// Support for WSGI Servers by switching transfer encoding from chunked to gzip/deflate
 		if disableChunkedEncoding {
 			roundTripReq.TransferEncoding = []string{"gzip", "deflate"}
-			cLength, err := strconv.Atoi(req.Header.Get("Content-Length"))
+			cLength, err := strconv.Atoi(tr.Request.Header.Get("Content-Length"))
 			if err == nil {
 				roundTripReq.ContentLength = int64(cLength)
 			}
@@ -191,12 +194,18 @@ func (p *Proxy) proxyHTTPRequest(
 		roundTripReq.Header.Set("User-Agent", "")
 	}
 
+	_, ttfbSpan := tr.Tracer().Start(tr.Context(), "ttfb_origin")
 	resp, err := httpService.RoundTrip(roundTripReq)
 	if err != nil {
+		tracing.EndWithStatus(ttfbSpan, codes.Error, "")
 		return errors.Wrap(err, "Unable to reach the origin service. The service may be down or it may not be responding to traffic from cloudflared")
 	}
+	tracing.EndWithStatus(ttfbSpan, codes.Ok, resp.Status)
 	defer resp.Body.Close()
 
+	// Add spans to response header (if available)
+	tr.AddSpans(resp.Header, p.log)
+
 	err = w.WriteRespHeaders(resp.StatusCode, resp.Header)
 	if err != nil {
 		return errors.Wrap(err, "Error writing response header")
@@ -211,7 +220,7 @@ func (p *Proxy) proxyHTTPRequest(
 
 		eyeballStream := &bidirectionalStream{
 			writer: w,
-			reader: req.Body,
+			reader: tr.Request.Body,
 		}
 
 		websocket.Stream(eyeballStream, rwc, p.log)

supervisor/supervisor.go

@@ -7,6 +7,7 @@ import (
 	"time"
 
 	"github.com/google/uuid"
+	"github.com/lucas-clemente/quic-go"
 	"github.com/rs/zerolog"
 
 	"github.com/cloudflare/cloudflared/connection"
@@ -264,9 +265,9 @@ func (s *Supervisor) startFirstTunnel(
 		switch err.(type) {
 		case nil:
 			return
-		// try the next address if it was a dialError(network problem) or
+		// try the next address if it was a quic.IdleTimeoutError, dialError(network problem) or
 		// dupConnRegisterTunnelError
-		case edgediscovery.DialError, connection.DupConnRegisterTunnelError:
+		case *quic.IdleTimeoutError, edgediscovery.DialError, connection.DupConnRegisterTunnelError:
 			edgeErrors++
 		default:
 			return

tracing/client.go

@@ -12,11 +12,12 @@ import (
 )
 
 const (
-	maxTraceAmount = 20
+	MaxTraceAmount = 20
 )
 
 var (
-	errNoTraces = errors.New("no traces recorded to be exported")
+	errNoTraces   = errors.New("no traces recorded to be exported")
+	errNoopTracer = errors.New("noop tracer has no traces")
 )
 
 type InMemoryClient interface {
@@ -45,7 +46,7 @@ func (mc *InMemoryOtlpClient) UploadTraces(_ context.Context, protoSpans []*trac
 	defer mc.mu.Unlock()
 	// Catch to make sure too many traces aren't being added to response header.
 	// Returning nil makes sure we don't fail to send the traces we already recorded.
-	if len(mc.spans)+len(protoSpans) > maxTraceAmount {
+	if len(mc.spans)+len(protoSpans) > MaxTraceAmount {
 		return nil
 	}
 	mc.spans = append(mc.spans, protoSpans...)
@@ -86,5 +87,5 @@ func (mc *NoopOtlpClient) UploadTraces(_ context.Context, _ []*tracepb.ResourceS
 
 // Spans always returns no traces error
 func (mc *NoopOtlpClient) Spans() (string, error) {
-	return "", errNoTraces
+	return "", errNoopTracer
 }

tracing/client_test.go

@@ -108,12 +108,12 @@ func TestSpansNil(t *testing.T) {
 
 func TestSpansTooManySpans(t *testing.T) {
 	client := &InMemoryOtlpClient{}
-	for i := 0; i < maxTraceAmount+1; i++ {
+	for i := 0; i < MaxTraceAmount+1; i++ {
 		spans := createResourceSpans([]*tracepb.Span{createOtlpSpan(traceId)})
 		err := client.UploadTraces(context.Background(), spans)
 		assert.NoError(t, err)
 	}
-	assert.Len(t, client.spans, maxTraceAmount)
+	assert.Len(t, client.spans, MaxTraceAmount)
 	_, err := client.Spans()
 	assert.NoError(t, err)
 }

tracing/tracing.go

@@ -3,9 +3,13 @@ package tracing
 import (
 	"context"
 	"errors"
+	"fmt"
 	"net/http"
+	"os"
+	"runtime"
 
-	otelContrib "go.opentelemetry.io/contrib/propagators/Jaeger"
+	"github.com/rs/zerolog"
+	otelContrib "go.opentelemetry.io/contrib/propagators/jaeger"
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/codes"
@@ -21,16 +25,26 @@ const (
 	service              = "cloudflared"
 	tracerInstrumentName = "origin"
 
-	tracerContextName         = "cf-trace-id"
-	tracerContextNameOverride = "uber-trace-id"
+	TracerContextName         = "cf-trace-id"
+	TracerContextNameOverride = "uber-trace-id"
+
+	IntCloudflaredTracingHeader = "cf-int-cloudflared-tracing"
 )
 
 var (
-	Http2TransportAttribute = trace.WithAttributes(TransportAttributeKey.String("http2"))
-	QuicTransportAttribute  = trace.WithAttributes(TransportAttributeKey.String("quic"))
+	CanonicalCloudflaredTracingHeader = http.CanonicalHeaderKey(IntCloudflaredTracingHeader)
+	Http2TransportAttribute           = trace.WithAttributes(transportAttributeKey.String("http2"))
+	QuicTransportAttribute            = trace.WithAttributes(transportAttributeKey.String("quic"))
+	HostOSAttribute                   = semconv.HostTypeKey.String(runtime.GOOS)
+	HostArchAttribute                 = semconv.HostArchKey.String(runtime.GOARCH)
 
-	TransportAttributeKey = attribute.Key("transport")
-	TrafficAttributeKey   = attribute.Key("traffic")
+	otelVersionAttribute        attribute.KeyValue
+	hostnameAttribute           attribute.KeyValue
+	cloudflaredVersionAttribute attribute.KeyValue
+	serviceAttribute            = semconv.ServiceNameKey.String(service)
+
+	transportAttributeKey   = attribute.Key("transport")
+	otelVersionAttributeKey = attribute.Key("jaeger.version")
 
 	errNoopTracerProvider = errors.New("noop tracer provider records no spans")
 )
@@ -38,6 +52,14 @@ var (
 func init() {
 	// Register the jaeger propagator globally.
 	otel.SetTextMapPropagator(otelContrib.Jaeger{})
+	otelVersionAttribute = otelVersionAttributeKey.String(fmt.Sprintf("go-otel-%s", otel.Version()))
+	if hostname, err := os.Hostname(); err == nil {
+		hostnameAttribute = attribute.String("hostname", hostname)
+	}
+}
+
+func Init(version string) {
+	cloudflaredVersionAttribute = semconv.ProcessRuntimeVersionKey.String(version)
 }
 
 type TracedRequest struct {
@@ -63,7 +85,12 @@ func NewTracedRequest(req *http.Request) *TracedRequest {
 		// Record information about this application in a Resource.
 		tracesdk.WithResource(resource.NewWithAttributes(
 			semconv.SchemaURL,
-			semconv.ServiceNameKey.String(service),
+			serviceAttribute,
+			otelVersionAttribute,
+			hostnameAttribute,
+			cloudflaredVersionAttribute,
+			HostOSAttribute,
+			HostArchAttribute,
 		)),
 	)
 
@@ -75,8 +102,26 @@ func (cft *TracedRequest) Tracer() trace.Tracer {
 }
 
 // Spans returns the spans as base64 encoded protobuf otlp traces.
-func (cft *TracedRequest) Spans() (string, error) {
-	return cft.exporter.Spans()
+func (cft *TracedRequest) AddSpans(headers http.Header, log *zerolog.Logger) {
+	enc, err := cft.exporter.Spans()
+	switch err {
+	case nil:
+		break
+	case errNoTraces:
+		log.Error().Err(err).Msgf("expected traces to be available")
+		return
+	case errNoopTracer:
+		return // noop tracer has no traces
+	default:
+		log.Error().Err(err)
+		return
+	}
+	// No need to add header if no traces
+	if enc == "" {
+		log.Error().Msgf("no traces provided and no error from exporter")
+		return
+	}
+	headers[CanonicalCloudflaredTracingHeader] = []string{enc}
 }
 
 // EndWithStatus will set a status for the span and then end it.
@@ -88,27 +133,28 @@ func EndWithStatus(span trace.Span, code codes.Code, status string) {
 	span.End()
 }
 
-// extractTrace attempts to check for a cf-trace-id from a request header.
+// extractTrace attempts to check for a cf-trace-id from a request and return the
+// trace context with the provided http.Request.
 func extractTrace(req *http.Request) (context.Context, bool) {
 	// Only add tracing for requests with appropriately tagged headers
-	remoteTraces := req.Header.Values(tracerContextName)
+	remoteTraces := req.Header.Values(TracerContextName)
 	if len(remoteTraces) <= 0 {
 		// Strip the cf-trace-id header
-		req.Header.Del(tracerContextName)
+		req.Header.Del(TracerContextName)
 		return nil, false
 	}
 
-	traceHeader := make(map[string]string, 1)
+	traceHeader := map[string]string{}
 	for _, t := range remoteTraces {
 		// Override the 'cf-trace-id' as 'uber-trace-id' so the jaeger propagator can extract it.
 		// Last entry wins if multiple provided
-		traceHeader[tracerContextNameOverride] = t
+		traceHeader[TracerContextNameOverride] = t
 	}
 
 	// Strip the cf-trace-id header
-	req.Header.Del(tracerContextName)
+	req.Header.Del(TracerContextName)
 
-	if traceHeader[tracerContextNameOverride] == "" {
+	if traceHeader[TracerContextNameOverride] == "" {
 		return nil, false
 	}
 	remoteCtx := otel.GetTextMapPropagator().Extract(req.Context(), propagation.MapCarrier(traceHeader))

tracing/tracing_test.go

@@ -12,7 +12,7 @@ import (
 
 func TestNewCfTracer(t *testing.T) {
 	req := httptest.NewRequest("GET", "http://localhost", nil)
-	req.Header.Add(tracerContextName, "14cb070dde8e51fc5ae8514e69ba42ca:b38f1bf5eae406f3:0:1")
+	req.Header.Add(TracerContextName, "14cb070dde8e51fc5ae8514e69ba42ca:b38f1bf5eae406f3:0:1")
 	tr := NewTracedRequest(req)
 	assert.NotNil(t, tr)
 	assert.IsType(t, tracesdk.NewTracerProvider(), tr.TracerProvider)
@@ -21,8 +21,8 @@ func TestNewCfTracer(t *testing.T) {
 
 func TestNewCfTracerMultiple(t *testing.T) {
 	req := httptest.NewRequest("GET", "http://localhost", nil)
-	req.Header.Add(tracerContextName, "1241ce3ecdefc68854e8514e69ba42ca:b38f1bf5eae406f3:0:1")
-	req.Header.Add(tracerContextName, "14cb070dde8e51fc5ae8514e69ba42ca:b38f1bf5eae406f3:0:1")
+	req.Header.Add(TracerContextName, "1241ce3ecdefc68854e8514e69ba42ca:b38f1bf5eae406f3:0:1")
+	req.Header.Add(TracerContextName, "14cb070dde8e51fc5ae8514e69ba42ca:b38f1bf5eae406f3:0:1")
 	tr := NewTracedRequest(req)
 	assert.NotNil(t, tr)
 	assert.IsType(t, tracesdk.NewTracerProvider(), tr.TracerProvider)
@@ -31,7 +31,7 @@ func TestNewCfTracerMultiple(t *testing.T) {
 
 func TestNewCfTracerNilHeader(t *testing.T) {
 	req := httptest.NewRequest("GET", "http://localhost", nil)
-	req.Header[http.CanonicalHeaderKey(tracerContextName)] = nil
+	req.Header[http.CanonicalHeaderKey(TracerContextName)] = nil
 	tr := NewTracedRequest(req)
 	assert.NotNil(t, tr)
 	assert.IsType(t, trace.NewNoopTracerProvider(), tr.TracerProvider)
@@ -41,7 +41,7 @@ func TestNewCfTracerNilHeader(t *testing.T) {
 func TestNewCfTracerInvalidHeaders(t *testing.T) {
 	req := httptest.NewRequest("GET", "http://localhost", nil)
 	for _, test := range [][]string{nil, {""}} {
-		req.Header[http.CanonicalHeaderKey(tracerContextName)] = test
+		req.Header[http.CanonicalHeaderKey(TracerContextName)] = test
 		tr := NewTracedRequest(req)
 		assert.NotNil(t, tr)
 		assert.IsType(t, trace.NewNoopTracerProvider(), tr.TracerProvider)

tunnelrpc/pogs/connectionrpc.go

@@ -18,6 +18,7 @@ import (
 type RegistrationServer interface {
 	RegisterConnection(ctx context.Context, auth TunnelAuth, tunnelID uuid.UUID, connIndex byte, options *ConnectionOptions) (*ConnectionDetails, error)
 	UnregisterConnection(ctx context.Context)
+	UpdateLocalConfiguration(ctx context.Context, config []byte) error
 }
 
 type RegistrationServer_PogsImpl struct {
@@ -88,6 +89,17 @@ func (i RegistrationServer_PogsImpl) UnregisterConnection(p tunnelrpc.Registrati
 	return nil
 }
 
+func (i RegistrationServer_PogsImpl) UpdateLocalConfiguration(c tunnelrpc.RegistrationServer_updateLocalConfiguration) error {
+	server.Ack(c.Options)
+
+	configBytes, err := c.Params.Config()
+	if err != nil {
+		return err
+	}
+
+	return i.impl.UpdateLocalConfiguration(c.Ctx, configBytes)
+}
+
 type RegistrationServer_PogsClient struct {
 	Client capnp.Client
 	Conn   *rpc.Conn
@@ -212,8 +224,9 @@ func (a *TunnelAuth) UnmarshalCapnproto(s tunnelrpc.TunnelAuth) error {
 }
 
 type ConnectionDetails struct {
-	UUID     uuid.UUID
-	Location string
+	UUID                    uuid.UUID
+	Location                string
+	TunnelIsRemotelyManaged bool
 }
 
 func (details *ConnectionDetails) MarshalCapnproto(s tunnelrpc.ConnectionDetails) error {
@@ -223,6 +236,7 @@ func (details *ConnectionDetails) MarshalCapnproto(s tunnelrpc.ConnectionDetails
 	if err := s.SetLocationName(details.Location); err != nil {
 		return err
 	}
+	s.SetTunnelIsRemotelyManaged(details.TunnelIsRemotelyManaged)
 
 	return nil
 }
@@ -240,6 +254,7 @@ func (details *ConnectionDetails) UnmarshalCapnproto(s tunnelrpc.ConnectionDetai
 	if err != nil {
 		return err
 	}
+	details.TunnelIsRemotelyManaged = s.TunnelIsRemotelyManaged()
 
 	return err
 }

tunnelrpc/pogs/connectionrpc_test.go

@@ -129,6 +129,11 @@ type testConnectionRegistrationServer struct {
 	err     error
 }
 
+func (t *testConnectionRegistrationServer) UpdateLocalConfiguration(ctx context.Context, config []byte) error {
+	// do nothing at this point
+	return nil
+}
+
 func (t *testConnectionRegistrationServer) RegisterConnection(ctx context.Context, auth TunnelAuth, tunnelID uuid.UUID, connIndex byte, options *ConnectionOptions) (*ConnectionDetails, error) {
 	if auth.AccountTag != testAccountTag {
 		panic("bad account tag: " + auth.AccountTag)

tunnelrpc/tunnelrpc.capnp

@@ -121,6 +121,8 @@ struct ConnectionDetails {
     uuid @0 :Data;
     # airport code of the colo where this connection landed
     locationName @1 :Text;
+    # tells if the tunnel is remotely managed
+    tunnelIsRemotelyManaged @2: Bool;
 }
 
 struct TunnelAuth {
@@ -131,6 +133,7 @@ struct TunnelAuth {
 interface RegistrationServer {
     registerConnection @0 (auth :TunnelAuth, tunnelId :Data, connIndex :UInt8, options :ConnectionOptions) -> (result :ConnectionResponse);
     unregisterConnection @1 () -> ();
+    updateLocalConfiguration @2 (config :Data) -> ();
 }
 
 interface TunnelServer extends (RegistrationServer) {

tunnelrpc/tunnelrpc.capnp.go

@@ -1410,12 +1410,12 @@ type ConnectionDetails struct{ capnp.Struct }
 const ConnectionDetails_TypeID = 0xb5f39f082b9ac18a
 
 func NewConnectionDetails(s *capnp.Segment) (ConnectionDetails, error) {
-	st, err := capnp.NewStruct(s, capnp.ObjectSize{DataSize: 0, PointerCount: 2})
+	st, err := capnp.NewStruct(s, capnp.ObjectSize{DataSize: 8, PointerCount: 2})
 	return ConnectionDetails{st}, err
 }
 
 func NewRootConnectionDetails(s *capnp.Segment) (ConnectionDetails, error) {
-	st, err := capnp.NewRootStruct(s, capnp.ObjectSize{DataSize: 0, PointerCount: 2})
+	st, err := capnp.NewRootStruct(s, capnp.ObjectSize{DataSize: 8, PointerCount: 2})
 	return ConnectionDetails{st}, err
 }
 
@@ -1462,12 +1462,20 @@ func (s ConnectionDetails) SetLocationName(v string) error {
 	return s.Struct.SetText(1, v)
 }
 
+func (s ConnectionDetails) TunnelIsRemotelyManaged() bool {
+	return s.Struct.Bit(0)
+}
+
+func (s ConnectionDetails) SetTunnelIsRemotelyManaged(v bool) {
+	s.Struct.SetBit(0, v)
+}
+
 // ConnectionDetails_List is a list of ConnectionDetails.
 type ConnectionDetails_List struct{ capnp.List }
 
 // NewConnectionDetails creates a new list of ConnectionDetails.
 func NewConnectionDetails_List(s *capnp.Segment, sz int32) (ConnectionDetails_List, error) {
-	l, err := capnp.NewCompositeList(s, capnp.ObjectSize{DataSize: 0, PointerCount: 2}, sz)
+	l, err := capnp.NewCompositeList(s, capnp.ObjectSize{DataSize: 8, PointerCount: 2}, sz)
 	return ConnectionDetails_List{l}, err
 }
 
@@ -1621,11 +1629,35 @@ func (c RegistrationServer) UnregisterConnection(ctx context.Context, params fun
 	}
 	return RegistrationServer_unregisterConnection_Results_Promise{Pipeline: capnp.NewPipeline(c.Client.Call(call))}
 }
+func (c RegistrationServer) UpdateLocalConfiguration(ctx context.Context, params func(RegistrationServer_updateLocalConfiguration_Params) error, opts ...capnp.CallOption) RegistrationServer_updateLocalConfiguration_Results_Promise {
+	if c.Client == nil {
+		return RegistrationServer_updateLocalConfiguration_Results_Promise{Pipeline: capnp.NewPipeline(capnp.ErrorAnswer(capnp.ErrNullClient))}
+	}
+	call := &capnp.Call{
+		Ctx: ctx,
+		Method: capnp.Method{
+			InterfaceID:   0xf71695ec7fe85497,
+			MethodID:      2,
+			InterfaceName: "tunnelrpc/tunnelrpc.capnp:RegistrationServer",
+			MethodName:    "updateLocalConfiguration",
+		},
+		Options: capnp.NewCallOptions(opts),
+	}
+	if params != nil {
+		call.ParamsSize = capnp.ObjectSize{DataSize: 0, PointerCount: 1}
+		call.ParamsFunc = func(s capnp.Struct) error {
+			return params(RegistrationServer_updateLocalConfiguration_Params{Struct: s})
+		}
+	}
+	return RegistrationServer_updateLocalConfiguration_Results_Promise{Pipeline: capnp.NewPipeline(c.Client.Call(call))}
+}
 
 type RegistrationServer_Server interface {
 	RegisterConnection(RegistrationServer_registerConnection) error
 
 	UnregisterConnection(RegistrationServer_unregisterConnection) error
+
+	UpdateLocalConfiguration(RegistrationServer_updateLocalConfiguration) error
 }
 
 func RegistrationServer_ServerToClient(s RegistrationServer_Server) RegistrationServer {
@@ -1635,7 +1667,7 @@ func RegistrationServer_ServerToClient(s RegistrationServer_Server) Registration
 
 func RegistrationServer_Methods(methods []server.Method, s RegistrationServer_Server) []server.Method {
 	if cap(methods) == 0 {
-		methods = make([]server.Method, 0, 2)
+		methods = make([]server.Method, 0, 3)
 	}
 
 	methods = append(methods, server.Method{
@@ -1666,6 +1698,20 @@ func RegistrationServer_Methods(methods []server.Method, s RegistrationServer_Se
 		ResultsSize: capnp.ObjectSize{DataSize: 0, PointerCount: 0},
 	})
 
+	methods = append(methods, server.Method{
+		Method: capnp.Method{
+			InterfaceID:   0xf71695ec7fe85497,
+			MethodID:      2,
+			InterfaceName: "tunnelrpc/tunnelrpc.capnp:RegistrationServer",
+			MethodName:    "updateLocalConfiguration",
+		},
+		Impl: func(c context.Context, opts capnp.CallOptions, p, r capnp.Struct) error {
+			call := RegistrationServer_updateLocalConfiguration{c, opts, RegistrationServer_updateLocalConfiguration_Params{Struct: p}, RegistrationServer_updateLocalConfiguration_Results{Struct: r}}
+			return s.UpdateLocalConfiguration(call)
+		},
+		ResultsSize: capnp.ObjectSize{DataSize: 0, PointerCount: 0},
+	})
+
 	return methods
 }
 
@@ -1685,6 +1731,14 @@ type RegistrationServer_unregisterConnection struct {
 	Results RegistrationServer_unregisterConnection_Results
 }
 
+// RegistrationServer_updateLocalConfiguration holds the arguments for a server call to RegistrationServer.updateLocalConfiguration.
+type RegistrationServer_updateLocalConfiguration struct {
+	Ctx     context.Context
+	Options capnp.CallOptions
+	Params  RegistrationServer_updateLocalConfiguration_Params
+	Results RegistrationServer_updateLocalConfiguration_Results
+}
+
 type RegistrationServer_registerConnection_Params struct{ capnp.Struct }
 
 // RegistrationServer_registerConnection_Params_TypeID is the unique identifier for the type RegistrationServer_registerConnection_Params.
@@ -2014,6 +2068,130 @@ func (p RegistrationServer_unregisterConnection_Results_Promise) Struct() (Regis
 	return RegistrationServer_unregisterConnection_Results{s}, err
 }
 
+type RegistrationServer_updateLocalConfiguration_Params struct{ capnp.Struct }
+
+// RegistrationServer_updateLocalConfiguration_Params_TypeID is the unique identifier for the type RegistrationServer_updateLocalConfiguration_Params.
+const RegistrationServer_updateLocalConfiguration_Params_TypeID = 0xc5d6e311876a3604
+
+func NewRegistrationServer_updateLocalConfiguration_Params(s *capnp.Segment) (RegistrationServer_updateLocalConfiguration_Params, error) {
+	st, err := capnp.NewStruct(s, capnp.ObjectSize{DataSize: 0, PointerCount: 1})
+	return RegistrationServer_updateLocalConfiguration_Params{st}, err
+}
+
+func NewRootRegistrationServer_updateLocalConfiguration_Params(s *capnp.Segment) (RegistrationServer_updateLocalConfiguration_Params, error) {
+	st, err := capnp.NewRootStruct(s, capnp.ObjectSize{DataSize: 0, PointerCount: 1})
+	return RegistrationServer_updateLocalConfiguration_Params{st}, err
+}
+
+func ReadRootRegistrationServer_updateLocalConfiguration_Params(msg *capnp.Message) (RegistrationServer_updateLocalConfiguration_Params, error) {
+	root, err := msg.RootPtr()
+	return RegistrationServer_updateLocalConfiguration_Params{root.Struct()}, err
+}
+
+func (s RegistrationServer_updateLocalConfiguration_Params) String() string {
+	str, _ := text.Marshal(0xc5d6e311876a3604, s.Struct)
+	return str
+}
+
+func (s RegistrationServer_updateLocalConfiguration_Params) Config() ([]byte, error) {
+	p, err := s.Struct.Ptr(0)
+	return []byte(p.Data()), err
+}
+
+func (s RegistrationServer_updateLocalConfiguration_Params) HasConfig() bool {
+	p, err := s.Struct.Ptr(0)
+	return p.IsValid() || err != nil
+}
+
+func (s RegistrationServer_updateLocalConfiguration_Params) SetConfig(v []byte) error {
+	return s.Struct.SetData(0, v)
+}
+
+// RegistrationServer_updateLocalConfiguration_Params_List is a list of RegistrationServer_updateLocalConfiguration_Params.
+type RegistrationServer_updateLocalConfiguration_Params_List struct{ capnp.List }
+
+// NewRegistrationServer_updateLocalConfiguration_Params creates a new list of RegistrationServer_updateLocalConfiguration_Params.
+func NewRegistrationServer_updateLocalConfiguration_Params_List(s *capnp.Segment, sz int32) (RegistrationServer_updateLocalConfiguration_Params_List, error) {
+	l, err := capnp.NewCompositeList(s, capnp.ObjectSize{DataSize: 0, PointerCount: 1}, sz)
+	return RegistrationServer_updateLocalConfiguration_Params_List{l}, err
+}
+
+func (s RegistrationServer_updateLocalConfiguration_Params_List) At(i int) RegistrationServer_updateLocalConfiguration_Params {
+	return RegistrationServer_updateLocalConfiguration_Params{s.List.Struct(i)}
+}
+
+func (s RegistrationServer_updateLocalConfiguration_Params_List) Set(i int, v RegistrationServer_updateLocalConfiguration_Params) error {
+	return s.List.SetStruct(i, v.Struct)
+}
+
+func (s RegistrationServer_updateLocalConfiguration_Params_List) String() string {
+	str, _ := text.MarshalList(0xc5d6e311876a3604, s.List)
+	return str
+}
+
+// RegistrationServer_updateLocalConfiguration_Params_Promise is a wrapper for a RegistrationServer_updateLocalConfiguration_Params promised by a client call.
+type RegistrationServer_updateLocalConfiguration_Params_Promise struct{ *capnp.Pipeline }
+
+func (p RegistrationServer_updateLocalConfiguration_Params_Promise) Struct() (RegistrationServer_updateLocalConfiguration_Params, error) {
+	s, err := p.Pipeline.Struct()
+	return RegistrationServer_updateLocalConfiguration_Params{s}, err
+}
+
+type RegistrationServer_updateLocalConfiguration_Results struct{ capnp.Struct }
+
+// RegistrationServer_updateLocalConfiguration_Results_TypeID is the unique identifier for the type RegistrationServer_updateLocalConfiguration_Results.
+const RegistrationServer_updateLocalConfiguration_Results_TypeID = 0xe5ceae5d6897d7be
+
+func NewRegistrationServer_updateLocalConfiguration_Results(s *capnp.Segment) (RegistrationServer_updateLocalConfiguration_Results, error) {
+	st, err := capnp.NewStruct(s, capnp.ObjectSize{DataSize: 0, PointerCount: 0})
+	return RegistrationServer_updateLocalConfiguration_Results{st}, err
+}
+
+func NewRootRegistrationServer_updateLocalConfiguration_Results(s *capnp.Segment) (RegistrationServer_updateLocalConfiguration_Results, error) {
+	st, err := capnp.NewRootStruct(s, capnp.ObjectSize{DataSize: 0, PointerCount: 0})
+	return RegistrationServer_updateLocalConfiguration_Results{st}, err
+}
+
+func ReadRootRegistrationServer_updateLocalConfiguration_Results(msg *capnp.Message) (RegistrationServer_updateLocalConfiguration_Results, error) {
+	root, err := msg.RootPtr()
+	return RegistrationServer_updateLocalConfiguration_Results{root.Struct()}, err
+}
+
+func (s RegistrationServer_updateLocalConfiguration_Results) String() string {
+	str, _ := text.Marshal(0xe5ceae5d6897d7be, s.Struct)
+	return str
+}
+
+// RegistrationServer_updateLocalConfiguration_Results_List is a list of RegistrationServer_updateLocalConfiguration_Results.
+type RegistrationServer_updateLocalConfiguration_Results_List struct{ capnp.List }
+
+// NewRegistrationServer_updateLocalConfiguration_Results creates a new list of RegistrationServer_updateLocalConfiguration_Results.
+func NewRegistrationServer_updateLocalConfiguration_Results_List(s *capnp.Segment, sz int32) (RegistrationServer_updateLocalConfiguration_Results_List, error) {
+	l, err := capnp.NewCompositeList(s, capnp.ObjectSize{DataSize: 0, PointerCount: 0}, sz)
+	return RegistrationServer_updateLocalConfiguration_Results_List{l}, err
+}
+
+func (s RegistrationServer_updateLocalConfiguration_Results_List) At(i int) RegistrationServer_updateLocalConfiguration_Results {
+	return RegistrationServer_updateLocalConfiguration_Results{s.List.Struct(i)}
+}
+
+func (s RegistrationServer_updateLocalConfiguration_Results_List) Set(i int, v RegistrationServer_updateLocalConfiguration_Results) error {
+	return s.List.SetStruct(i, v.Struct)
+}
+
+func (s RegistrationServer_updateLocalConfiguration_Results_List) String() string {
+	str, _ := text.MarshalList(0xe5ceae5d6897d7be, s.List)
+	return str
+}
+
+// RegistrationServer_updateLocalConfiguration_Results_Promise is a wrapper for a RegistrationServer_updateLocalConfiguration_Results promised by a client call.
+type RegistrationServer_updateLocalConfiguration_Results_Promise struct{ *capnp.Pipeline }
+
+func (p RegistrationServer_updateLocalConfiguration_Results_Promise) Struct() (RegistrationServer_updateLocalConfiguration_Results, error) {
+	s, err := p.Pipeline.Struct()
+	return RegistrationServer_updateLocalConfiguration_Results{s}, err
+}
+
 type TunnelServer struct{ Client capnp.Client }
 
 // TunnelServer_TypeID is the unique identifier for the type TunnelServer.
@@ -2181,6 +2359,28 @@ func (c TunnelServer) UnregisterConnection(ctx context.Context, params func(Regi
 	}
 	return RegistrationServer_unregisterConnection_Results_Promise{Pipeline: capnp.NewPipeline(c.Client.Call(call))}
 }
+func (c TunnelServer) UpdateLocalConfiguration(ctx context.Context, params func(RegistrationServer_updateLocalConfiguration_Params) error, opts ...capnp.CallOption) RegistrationServer_updateLocalConfiguration_Results_Promise {
+	if c.Client == nil {
+		return RegistrationServer_updateLocalConfiguration_Results_Promise{Pipeline: capnp.NewPipeline(capnp.ErrorAnswer(capnp.ErrNullClient))}
+	}
+	call := &capnp.Call{
+		Ctx: ctx,
+		Method: capnp.Method{
+			InterfaceID:   0xf71695ec7fe85497,
+			MethodID:      2,
+			InterfaceName: "tunnelrpc/tunnelrpc.capnp:RegistrationServer",
+			MethodName:    "updateLocalConfiguration",
+		},
+		Options: capnp.NewCallOptions(opts),
+	}
+	if params != nil {
+		call.ParamsSize = capnp.ObjectSize{DataSize: 0, PointerCount: 1}
+		call.ParamsFunc = func(s capnp.Struct) error {
+			return params(RegistrationServer_updateLocalConfiguration_Params{Struct: s})
+		}
+	}
+	return RegistrationServer_updateLocalConfiguration_Results_Promise{Pipeline: capnp.NewPipeline(c.Client.Call(call))}
+}
 
 type TunnelServer_Server interface {
 	RegisterTunnel(TunnelServer_registerTunnel) error
@@ -2198,6 +2398,8 @@ type TunnelServer_Server interface {
 	RegisterConnection(RegistrationServer_registerConnection) error
 
 	UnregisterConnection(RegistrationServer_unregisterConnection) error
+
+	UpdateLocalConfiguration(RegistrationServer_updateLocalConfiguration) error
 }
 
 func TunnelServer_ServerToClient(s TunnelServer_Server) TunnelServer {
@@ -2207,7 +2409,7 @@ func TunnelServer_ServerToClient(s TunnelServer_Server) TunnelServer {
 
 func TunnelServer_Methods(methods []server.Method, s TunnelServer_Server) []server.Method {
 	if cap(methods) == 0 {
-		methods = make([]server.Method, 0, 8)
+		methods = make([]server.Method, 0, 9)
 	}
 
 	methods = append(methods, server.Method{
@@ -2322,6 +2524,20 @@ func TunnelServer_Methods(methods []server.Method, s TunnelServer_Server) []serv
 		ResultsSize: capnp.ObjectSize{DataSize: 0, PointerCount: 0},
 	})
 
+	methods = append(methods, server.Method{
+		Method: capnp.Method{
+			InterfaceID:   0xf71695ec7fe85497,
+			MethodID:      2,
+			InterfaceName: "tunnelrpc/tunnelrpc.capnp:RegistrationServer",
+			MethodName:    "updateLocalConfiguration",
+		},
+		Impl: func(c context.Context, opts capnp.CallOptions, p, r capnp.Struct) error {
+			call := RegistrationServer_updateLocalConfiguration{c, opts, RegistrationServer_updateLocalConfiguration_Params{Struct: p}, RegistrationServer_updateLocalConfiguration_Results{Struct: r}}
+			return s.UpdateLocalConfiguration(call)
+		},
+		ResultsSize: capnp.ObjectSize{DataSize: 0, PointerCount: 0},
+	})
+
 	return methods
 }
 
@@ -4317,224 +4533,231 @@ func CloudflaredServer_Methods(methods []server.Method, s CloudflaredServer_Serv
 	return methods
 }
 
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-	"\x9eGy\x1e\x87\xf6\xa8\xa1\xa4\xd9 3P\xd53+" +
-	"\x15MO\xf1,]F\xd6\xbak\xdd\xd4\xe1\x87e\x82" +
-	"?k\xfa\xf9\x06+\x82P\x9c>\xd8\xea\xea\x9c\xf0u" +
-	"\xde\xd8\x16$c\xff\x98\x1f\x1e\x0e\xb2\x85\x1f\x0f\x1f#" +
-	"gy\x94Gyg(\xaf\xec\xa0\xc8\xf9\x14\x8f\xf2W" +
-	"9\x14#\x91\x04F\x00\xc4\xe7\x88%;y\x94\xf7r" +
-	"SS6\x9b`\x9a\xd5\xab\x8e\x82\xc0\xcc@J*\xf6" +
-	"\xaa\xa3\x0cx\xf3zck\xf5\x0cx\xe8\xc3\xa6\x9ee" +
-	"\x16\xebe\xe9\xacB.7\xc1\xdc\xefE2z\x87:" +
-	"\x1do\x93e\xdeC\xfc\x8d{UR\x88\x0em\x81\xe3" +
-	"\x0a,T\xdcL\xa3\xad\xbb\xb8\x1b\x0c\xca8\x10xL" +
-	"\x91\x07h~,A\xc7\xb1\x19\xa78\x7fO\xe0u\x1e" +
-	")\x16u\x04\x01\xc1\xaf\x09\"\xc0a\x04\xb03\xed," +
-	"X\x16\x0a#3i\xd5\xe9\xaa\xe5\x02GE\x98w\x17" +
-	"E\xef\x02/\x8a\xfb\x80\x13c\x82\xedi\x8e\xde|\xa1" +
-	"\xac\xa0\x8aL\x17eV\xe5-U\xd05\x93\xf6\x0a\xf1" +
-	"\xbf\xa3\x12\xff\x8d\x80\xff^B{lK\x98\xfe\xc5\x84" +
-	"\xb6cw\xc0t1\xc2\xb9\xf4\xdf\xb3\x0f@\xde\xcb\xa3" +
-	"\xfc\x12\x87\x9dn\xad\x85\xf5A\xe3\xa5HY\xb7\xa2\xb8" +
-	"G\x87\xd6\xb4\x92\x0d\x92\x9em\xb0|VI\xb3>," +
-	"VO\x80\x08\x1c\xa2\xe3'\xb9\xbc\xc1L\x13U]\x93" +
-	"\x0bJV\xe5\xadI\xbf\xe2\xd5\x0a\xb9A\x83M\xa8\xa8" +
-	"\x17\xccn\xcbb9!o\x99WS\x0f\x07\x00Q\x90" +
-	"\x14\xd4\xacY\x92#\xdb\x03*\xf8\x00-\x1a\x0f\xf2@" +
-	"\xbcPP\xfd\x04`g\xf5\xb4s\xb2\x10_\xa9\xe4\xca" +
-	"\xf3@\xd5\x8c\x01kJ\xb8\xf3\xd2\xd2oR\xfd6\xfd" +
-	"\x95\x89Lw\xee\x14!\x95)\x0et\xf1(\xdf\x13R" +
-	"\xb9\x7fI\xc8\x0eO\xe5\x15\xc3\x81\x1d\xc2\x1f\xb3IO" +
-	"\xabV\x96\xa3\xf4\xe5\x81Y4\xa6\x1b\x84\xbb\x831\xd3" +
-	"\xe9\x17\x8e*\xab\xf2\xad\x8e\x85\xa4\xe3\xed\x9e\x8e\xd2$" +
-	"\x0e\x00\xa4\xd6#\x8f\xa9\xad\x18\xa8)=\x8c=\x00\xa9" +
-	"\x87H\xfe(\x06\x9aJ\xdb\xb0\x19 \xb5\x99\xe4O\xa0" +
-	"\x7f\xb5\x93\x1e\xc3\x83\x00\xa9'H\xfc,\x0d\x8f\xf0\x8e" +
-	"KH\xbb\x9c\xe5w\x92|/\xc9\xa3\x91\x04F\x01\xa4" +
-	"=\xd8\x0e\x90z\x96\xe4\xaf\x91\xbc\x8aK`\x15\x80t" +
-	"\x08\xc7\x01R\xaf\x90\xfc\x0d\x92\x0b\xd1\x04\xddn\xa5\xd7" +
-	"\xd1\x00H\xfd-\xc9\xbfI\xf2\xea\xc6\x04V\x03HG" +
-	"\x1c\xf9\x9b$\xff>\xc9k\x9a\x12X\x03 \xfd\x13n" +
-	"\x01H}\x97\xe4'H>\x0b\x138\x0b@:\x8e\xbb" +
-	"\x01R'H\xfe\xaf$\x9f]\x95\xc0\xd9\x00\xd2O\x1c" +
-	"}N\x92\xfc\x17$\xaf\x8d$\xb0\x16@\xfa\x19\xee\x03" +
-	"H\xfd\x82\xe4\xffM\xf2\x98\x90\xc0\x18\x80\xf4\xaec\xd7" +
-	"y\x92Ws%7+\x8fQ%\xd7'^7\xfd#" +
-	"cE\x1fG\x97\xee\x83z\x9c\xaeH\x18\x0f\x1a\xaf\x80" +
-	"\x18\x07\xb4\xf3\xba\x9e]9\x95\xa9qK\x195\xbd\xab" +
-	"Z}\xd0\x9a\x02$\xa1_\xfc@\\\xd7\xfa3~ " +
-	"(\x8d:\x9e&\xaa\xd9]\xb0\xf4B\x1eZ)\xc8f" +
-	"\xfc\x98c\x14\xb4\xe5\x86\x9e[\x8d\xcc\xc8\xa9\x9a\x92\x9d" +
-	"!\x1a\xd5\x00\x875P\x0c\x09\xde\xda\xd3\x87\xa6+_" +
-	"<}Fs\xa5\x8cn\xcdw\xacVF\xaf&N-" +
-	"\x09rV\\\x0b\x05\xa4\xd6\x09%[\xf8(\xe1ij" +
-	"=\x95\xect\xeb\xb1\x99\xcau\xaf\xf7T\x12J*T" +
-	"\x17C\xe5\xf99\xc9\xccV\xbf\x09\x132\xf8`\x10\x83" +
-	"={\x97\xb5\x85\xee.Y\xc5b\xa6\xd5\x9d\xc7|V" +
-	"e\x99\xcf0#\x1eN\xd9\x15+\x92\xc8Le\xfa\xd4" +
-	"2\x07C]r2\x9c+\x1a|\xd5x\x8e2\xcb\xfd" +
-	"\xd5\xaf\x8d\xe8T\x87\x08\xe1\xe2\xeb\xdaf'\x99\x19\xbf" +
-	"\x9a\xb3\x08\x9a\x863_\x9d*\x94c\x15\x8a1\xef&" +
-	"\x10\xba&\x13\x19\xd7\xf0(\x8f\x85\xc8\xc8\x06*\\\x93" +
-	"\x93A\x7fL\xe4\xb9b\x83\x8c2W\x9eG\xf9!\x0e" +
-	"\xe3J\xc1\x1a\xc3\xfa\xe0\xf1c\x8a\xd2S{8\xc4\xcd" +
-	"~-\xc3\x00\xd7{\xee\x15\xcag~W~\xe6\x9a\xf9" +
-	"\xea\xcc\xf6\xee\"3\x02\xee\xf7\xaeKv\xbe\xe2U\xbd" +
-	"\xd3\xdd\x94x\xd6\xe8T\x85^\xd7\x1f\xbd\x8e\xb0xh" +
-	"\x03p\xe2\x01\x01\x83^7z\xadmq\x8f\x01\x9c\xb8" +
-	"K@\xce\x7f\x97A\xef\xfdE|\xecq\xe0\xc4m\x02" +
-	"\xf2\xfe\xb3\x0az]\xd2\xc5\x93\xb3\x108q\xa3\x80\x11" +
-	"\xff=\x0b\xbd\x1e\xab\xb8n\x1c8Q\x150\xea\xbf\xd8" +
-	"\xa0\xd7\xe2\x17\xd7n\x01N\x1c\x0az\x81\xd0\xe9\xda\xd1" +
-	"\x85\xb6\xc7QhuX:\xb53\xe8\x8e\x02\xe8B\xdb" +
-	"\xbb\x99\xf0W\xba\x9a8\xa3\xbc\xe6\x16\xc4\xd3\x8a\xc5\xba" +
-	"\xa8Zt\x03\x12\x16#\x12t\xa1\x1c\xc1P\x8b\x19\xe0" +
-	"z[\x03I\xd6\xea\x9c\xf3G\xad\xe1\xbc\xf9\x1f1F" +
-	"\xf2\x95\xb4\xa6}\xfc&ih]*Kky\x94\x1b" +
-	"\xb9\x19+\xd1\xc8\x95\xac\xf0\xc8\x1f\xa7\xc9\xb4\xfeo\xfb" +
-	"\xeb\x1f\xa7\xf0\xfa}\x1e\xe5\x93!\xb7\xfe!\x09\xdf\xe1" +
-	"Q>\x1d\xaa\xe4~D\xbe~\x92G\xf9b\xd0\xf7~" +
-	"\xffq\x00\xf9\"\x8f\xc9Pe$\xfe\x9a\x06\xfe\x8a\xea" +
-	"\x07\xa7.B\xb7.\x8a\xe2\xd3\x00\xa9j\xaa+\x12N" +
-	"]\x14q\xeb\"\x11\x87\x01R\xf5$\x9f\x17\xae\x8b\x9a" +
-	"\xf0>\x80T#\xc9\xe7\xe3\xd4\xdb\xa6P0\x82\xca1" +
-	"\xab\x8f\xde\xa3j\x15\x93\xad\xd7\x88Gk\xb9\xa2f\x0b" +
-	"\x06\x83 \xd7\x17\x83Mo\xa8\xfcp;\xf4n3." +
-	"E$\xcc\xa0\xe97\xea\xae\xe1\x9e?]\xe6\xc9\xea\x85" +
-	"\xccHV1X&\xc5\x0c\xc1\x0d\x08\x83|T\xae\xc6" +
-	"\xd0\xab7@\xf0:\x19\"\xfb\xb4\x99\xac\xcf0t4" +
-	"J\xaa\xf4%A\x95\xee\x17\xe9t\xd9\xb8\x8bGy5" +
-	"\x1dm\x97{\xb4\xf2pp\xafhM+\x05\x93\x95a" +
-	"\x02<3\xfc^\x8f9\xa6\x17\xb2\x99$\x03\xc12&" +
-	"K \x9d\xb1ZO\xb1\xb8\x17\x09\xddG\x0a\xefy\x0e" +
-	"\xbdW\xb8\xd0#\x85\xf7R\x84\xdeSo\xf9#\x85\x87" +
-	"A\xd9#\x85\xfb\xc1\xe1\xfc\xd4;\xf5u4)\xdc\xb4" +
-	"\x18:\x94k\xea\xdd_u\xcb\xdb\xffw\x89\x92\xc8Q" +
-	"s\xbd\xcd /\xc1\xfd\x7f\x00\x00\x00\xff\xff\xf1\xc3d" +
-	"\xc6"
+const schema_db8274f9144abc7e = "x\xda\xccZ}t\x1c\xd5u\xbfwfW#\x19\xad" +
+	"G\xc3,\x96\xb5\xc7B\x8d\x8e]j'\x06d\xd7)" +
+	"u\xd3H2\xb2\x83\x84?4\xbbV\x0e1&\x87\xd1" +
+	"\xee\x934\xea\xee\xcc23+l\x07\xe2\x0fl\x0c\x1c" +
+	"B0\xb1\xf9pBc\x9b\xd2\x9e\x98$\x85`\x9a\xba" +
+	"\x07Z\x9c\x86\x10Cpp\x0e\xa4&\x86\xa6\x89\xe3\xb6" +
+	"\xf8\x98R\x0cn\x8e\xdb\x98\xe9\xb93;\x1f\xda]$" +
+	"+\xce\x1f\xf9ou\xe7\xbe\xf7\xee\xfb\xbd\xdf\xfdx\xf7" +
+	"\xe9\xea;\x1a\xba\xb8\x8e\xf8F\x11@9\x10\xafs\xd8" +
+	"\xbc\x9fl\xd83\xe7\x9f\xb7\x80\x92Bt\xbe\xf8l_" +
+	"\xf2\x9c\xbd\xe58\xc4y\x01`\xe1\xe3\xc2\x06\x94\x0f\x0a" +
+	"\x02\x80\xfc\x8c\xf0\x1f\x80\xce\x9d3\x9e\xfc\xfa\xe3Kw" +
+	"\xde\x01R\x8a\x0f\x95\x01\x17>R\xdf\x87\xf2\xb7\xeaI" +
+	"\xf3\x1b\xf5\xdb\xe5\x86\x06\x01\xc0\xb9^\xba\xea\xc6\xe4\xab" +
+	"GH;:u\x8c\xa6~\xaf~\x1e\xcaHj\xf2\xf9" +
+	"z\x9a\xfaS\x85\x1f\xef\xfb\xe4\xae\x97\xb7\x82\x94\xe2\xc6" +
+	"M\xfdv\xc3\x06\x94\xcf\xbb\x9a\xe7\x1aV\x01:\xef\xef" +
+	"\x9c\xf9\xc4\xde#?\xdc\x06\xd2\x15\x08eK\xa5i?" +
+	"C@y\xce\xb4\xbf\x05t^9{\xe3\x07\x07~\xb0" +
+	"\xe8N\x90\xe6\x92\x02\x92\xc2\x0b\xd3\xda9@\xf9\xadi" +
+	"\x9d\x80\xce\xa9\xd3\xff\xb7\xfd\x0bsW\xde\x0f\xca\\\xe4" +
+	"\x00\xe2\x1ci\x9c\x9f\x96\"\x8d\xcb.!k:\x97\xbd" +
+	"r0\xb5\xf0\xc1\x9d\x15\xa6\xbb\x8ag/\x99\x87r\xbc" +
+	"\x91\x0c\xc2\xc6[\x01\x9dO\xff\xc9\xd3\xf7\xf5<\xb8i" +
+	"\x17HW\x05\xeb\xb1\xc654\xdb\xe6FZ\xef\x7f\xa6" +
+	"\x7f\xf5H\xe9\xda\xef>X6\xc8\x9deo\xe3<R" +
+	"8\xe8\xce\xd0>6\xe7\xe6\xef\xbd\xf0\xf4C\xa0\xccG" +
+	"t\xde\x1c\xfc\xf8\xeb\xfc\xa3\xfb\x8f\xc3\x00\x0ad\xdf\xc2" +
+	"\x96\xc4>\xda\xdd\xdc\x04\xe9\xfe\xf8\x13\xcf\xfe\xc3\xfdO" +
+	"o\xff*(W \x02\xb8h~)\xf1\xbf\xa4\xb07" +
+	"A\xab\xed<\xf6\xdc\xca\xc2\x8e\xdd\xfb<|\xdc\xef\x87" +
+	"\x13\x1c\x071gk\xef\xaf\x0b\x03\x8fe\x1e+#\x17" +
+	"\xa7O\xcf%\xce \xe0\xc2\xa3\x896\x04t\x16\xfd\xec" +
+	"\xe4\xaa\x15\xdf\x19\xfa\x9b\xc8\xd8w\xa6o\xa0\xb1\xdb\x87" +
+	"\xce\x1cjJ\x17\x9e\xa8@\xc4\xdd\xec\xdb\xd3\xf7\xa3\x8c" +
+	"\xa2{\x98\xd3\xc9\x84o]~}\xc3\xba\x93\xcb\x9e\x04" +
+	"i\xbe?M\xab\x98\xa6i\xc6^z\xec\x0f\xe7\xbct" +
+	"\xebS\xa0\\\x85\x01X-\xf4\x0d\xe5E\"\xed/v" +
+	"|\xce\xfe\xe7~~\xdf\x81*\x8e\xed\x107\xa0\xfc\xb8" +
+	"\xbb\xca^\xf13\xf2Q\xfa\xe5\xc4n\xe2?T\x1f\xfe" +
+	"\xa7\x03\x95\xfcu1>(\x0e\xa2\xfc\x8a\xe8\" \xba" +
+	"\xfb\xbb\xe7\xd0\xee\x8f\xd7\x7f\xfd\xfdgj\xaa\xbf\xd74" +
+	"\x88r\\r\x0fV\"\"]\xd6\x8bo>\xdf\x11\xfb" +
+	"n\x94i\x8fK\xa7\x08\xea\x83\xaeB\xeb;K\x12\xfa" +
+	"\xbb[\x9e\xaf\x00\xc5U\xfc\xdc\xa5}(\x17.\xa5\xd9" +
+	"\xb4KI9\xf6\xc9\xd1\xed\xd2\x89\x9f\xbe\xe0\x81\xe2\xed" +
+	"<.\x8f\xd2\xce?&\x13j}7~\xe5\x81\xf8\xc9" +
+	"\xaf\xbcH\xc6E| Nn\xb5\xb0[6Q\x1e\x90" +
+	"\xe9\xa7\"7\xf3\x80N\xea\xc9?\xfb\xf6\x92\xdc\x1b/" +
+	"\xd7\xe0\xa8|t\xc6\x19\xf9\xad\x19\xf4\xeb\x8d\x19\x04\xea" +
+	"\x89\xf9O}\xe1\xed/\x1d}\xad\xbc\x13w\xedE\xcd" +
+	".iz\x9bi\xedsk\xf7\\\xaf97\x1c\xaf\x04" +
+	"\xc6\xd5\xd4\x9a\xbf\x83\xf2\xe6f\x9a\xee\xf6f\x9a.`" +
+	"h-\xed_4\x8f\xa2|\xd6\xd5~\xcf\x9d\x9b;\xa9" +
+	"\xb6l\xfa\xe9\xa7\xdf\x8c\x90\xeal\xf3/\x11b\xce\xca" +
+	"\xcf\xde8\xdap\xfb\x89\x13Q\xb3\xdenv\x01>\xef" +
+	"\x0e\xfd\xc7\x7fyh\xe4\xa6o\x1f9\x19%\xd2L\x93" +
+	"\x88\xf4_\x7f}\xea\xcb\xa7\x0b\xb9\x7fw]\xc6?\x9c" +
+	"\x96\x99\x8b\x09\xce\x8e\x99\xe4\xc3\xcdm\x89\xa5\xed\xc7\xfa" +
+	"OE\xf1N\xb4,!\x859-4\xf9\xa2\x9b\xbb\xd9" +
+	"\xdakn8U\xc5\xb4\xa5-\x8bQ\x1ehq\xb1n" +
+	"\xd9\x8e\xb2\x96j\x06p\xc6\xfen\xc7\x0dO|\x7f\xe5" +
+	"\x19\xcf\x8b][>\x97Z@\xb6\xdc\xf7\xc5\x9eU\x7f" +
+	"\xda~\xe8Lt\x1bJ\x8a\xfcJf)Zi\xe8\x9a" +
+	"\xd3\x9f\x99s\xdf\x0f\xce\xd4r\x9em\xa9y(\xefJ" +
+	"\x11\\;H\xf9\xdde\x7f\xf9ZJL}P\x01m" +
+	"\x1d\xe9>\x93\x1aE\xf9p\xca\x0dh\xa9\x17\x89\xd0{" +
+	"\xffj\xdf\xbf\x9e;r\xdd\xd9\xaa=\x1c\x9cE\xdc\x9f" +
+	"E\xd3\x1e\x9e%\xc8\x87g]\x01\xe0\xdcy\xfc\xf3\xeb" +
+	"~r\xc7\xfbg+\x19\xe6\x1arhV\x1a\xe5\xd7\xdd" +
+	"\x11Gg\x11a\x1fZ\xfd\x9f\x1bO\xef\x9a\xf1\xeb\xaa" +
+	"\xb9oi\x1dEy[+inn}Q\xbe\xecr" +
+	"\xf2\xc4W\x85\xc7:z6\xbe|.rT\xe7[\xfb" +
+	"\x08\x9e\x07\x85\xaf\x9d\xd8\xf4\xf3\xcf\xff&\x0a\xcf\xb9\xd6" +
+	"_\x12<\x89\xcb\x09\x9e\xdb\xde}\xe4\xba/\xaf\xfd\xe6" +
+	"\x87\x11\x82\xcc\xbf|\x0b\x0d\xb5K\xba\xce\xf2f1\x96" +
+	"\xbd\xca\xff\x99\xbd2\xab\x16\xf5\xe2\xe2\xee\x92=\xc2t" +
+	"[\xcb\xaa6K\xb3N\xabh\xe8\x16\xebGT\x9a\xf8" +
+	"\x18@\x0c\x01$u\x14@\xb9\x99G%\xcf\xa1\x84\x98" +
+	"$\xa2H\x1a\x09GxTl\x0e%\x8eKR\x84\x95" +
+	"ni\x07P\xf2<*\xeb8D>\x89<\x80Tz" +
+	"\x00@Y\xc7\xa3\xb2\x95C\xa7\xc8\xcc\x82\xaa3\x1dD" +
+	"{\xa9ib#p\xd8\x08\xe8\x98\xcc6\xd7\xab\x83y" +
+	"\x10YD,\x8c\xdejc\x028L\x00:#F\xc9" +
+	"\xb4\x06t\x1b\xb5|\x9a\x0d\x99\xcc\xc2\x11\xac\x03\x0e\xeb" +
+	"\x00'\xda^\x86Y\x96f\xe8+T]\x1df&\x00" +
+	"\xed\xac\x9e\x8f\x03\x04\xd9\x0b\xfd<'u\xec\x06N\x9a" +
+	"/`\x98i\xd0'\xab\xf4\xb1\xfd\xc0I\xad\x82c\xb2" +
+	"a\xcd\xb2\x99\x89\x03\xb9\xa2;7o\xe8]\xe8\x94t" +
+	"\xef\x032\xd3\xfb \xd2\xaa]\xd8\x8f\xa1u|\xb5u" +
+	"\xd7\xe65\xa6\xdbb\xaf>dT@\xdeW\x0b\xf2\xbe" +
+	"2\xe4[#\x90o^\x02\xa0\xdc\xc6\xa3r\x17\x87\x12" +
+	"_\xc6|\xdb<\x00e\x13\x8f\xca\xbd\x1c:Yw\x91" +
+	"\xde\x1c\x00\x04h\x0e1\xd5.\x99\xcc\"\xd9t\xc0~" +
+	"\x1e]\xd0\xa7\x03n\x1cc&\xd9\xee\x1f\x82\xa8\x9a\xd9" +
+	"\x91\xe0\xa0&@z\xe9:\xcd\xb25}x\xb5+\xef" +
+	"\xec7\xf2Zv=\xed\xaa\xd1\xb5\xb3u1\x00\xa2t" +
+	"\xd9\x1a\x00\xe4$i\x09@\xa76\xac\x1b&sr\x9a" +
+	"\x955t\x9d\x01\x9f\xb57\x0e\xaayU\xcf\xb2`\xa1" +
+	"\xba\xea\x85\xbc\x052\xcc\x1cc\xe6\x95j\x84\xbe\xb3\xfb" +
+	"US\xe5\x0b\x96\xd2\x18\xe0\xb8t\x0d\x80\xd2\xc3\xa3\xd2" +
+	"\x1f\xc1q\x05\xe1\xb8\x9cG\xe5\x86\x08\x8e\x03\x84c?" +
+	"\x8f\xcaZ\x0e\x1d\xc3\xd4\x865\xfdZ\x06\xbc\x19e\xa0" +
+	"e\xebj\x81\x11fe<6\x1aE[3t\x0b\x9b" +
+	"\xc2\xac\x03\x88M\x11\xa4\x84\xc98y\xa5O)\x9fQ" +
+	"\x86>;\xcd\xac\x92\x90\xb7-%\x16\xec$\xb1\x18@" +
+	"\xa9\xe7QIr\xd8i2\xab\x94\xb7\xb1),'~" +
+	"\x17\xab\xfa\xf0Eh\x98\xaeE\xc3\x05\x00J\x8eG\xa5" +
+	"\xc8!\x96\xd1+,\x89D\x03\x1e=\x16\xde\xb2\x1b@" +
+	"\xb1yT6q\xe8X\xde\"\xbd\x809\x1f\xd1\xb6\x9c" +
+	"e\xf7\x16\xfd\xbf6\xe6,\xbb\xdf0m\x14\x80C\x01" +
+	"\x88\xb7\x86\xc5\xba\x87\xc8\xa7zsyv\x9d\xc6\xeb6" +
+	"\xc6\x81\xc38L\xe8T\x1e?D\x0al\x9e\xb7\xfb\xbb" +
+	"\x99Kd\xf8#\x1e\x95?\x8e\xec\xa6\x83\xe2\xd8\xd5<" +
+	"*\x9f\xe2\xd0Q\xb3Y\xa3\xa4\xdb\xab\x81W\x87+8" +
+	"\x9fa fM\x16\xd2\xc1_\xb6\xbe\x86[\x1b\xfa\x90" +
+	"6\\2U;\x02x\xa9\x98Sm6\xee\x93{\xce" +
+	"y\xfe\x02\xce9\xa8+\xa6|\xce~d\xaa8i\xd1" +
+	"T\x0bV\x14\x9bt-l\xe8T?\xc1\xa3rM\xed" +
+	"\x03\xdcX`\x96\xa5\x0e\xb3\xaa\xf0\x10\xaf\x89\x89\xce\xb2" +
+	"\xb4\xeb4\xf3\x92\xcc\x95&\xb3\x84R\xde&+\x1a\x1d" +
+	"\xc73\x83\xb85\x9bG\xe5j\x0e\x13\xf8\xa1\xe3\xd91" +
+	"\xff\x81\xf0\x8c\xda\x98i\x1a&6\x85I\xb8\x0cI\xb6" +
+	"\xbc\x00\x1az\x0f\xb3U-\x8f\xe4\x96A\xa5Z\x01\xdc" +
+	"dq%\x84\xcd\x13\xcf\xee$\xef(\x8c;)\xa2w" +
+	"\x13\x8f\xca,\x0e\x9daS\xcd\xb2~f\xa2f\xe4V" +
+	"\xaa\xba\x91\xe1Y\xb6\x8a\xac\xd3\xa7\xba\xa8\xcb\x0f\xdb\x82" +
+	"`\xd4\xc4\xe3MV\x06\xa1<\xbc\xbf\xcd\xb39\x19\xd8" +
+	"|{{\x98\x8c\x83c\xde<\x18f\x8b \x1e\xdeM" +
+	"\xcer\x17\x8f\xca\xceH^\xd9A\x91\xf3~\x1e\x95\xaf" +
+	"q(\xc5bI\x8c\x01H\x8f\x10Kv\xf2\xa8\xec\xe1" +
+	"\xc6\xa7l6\xc6t\xbbG\x1b\x06\x81Y\xa1\x94L\xec" +
+	"\xd1\x86\x19\xf0\xd6\xc5\xc6\xd6\xfaI\xf00\x06-#\xcf" +
+	"l\xd6\xc3\xb2y\x95\\n\x8cy\xdf\xcbd\xf4\x0fu" +
+	"\"\xde\xa6\xab\xbc\x87\xf8+\xfaUR\x84\x0e\xed\xa1\xe3" +
+	"\x0a,R\xdcL`\xad7\xb9\x17\x0c\xaa8\x10zL" +
+	"\x99\x07h\xfdN\x82\x8e\xbbg\x1c\xe7\xfcKB\xaf\xf3" +
+	"I1\x7fq\x18\x10\x82\x9a \x06\x1c\xc6\x00;\xb3\xee" +
+	"\x84U\xa106\x99U\x9d\x9eY\x1epT\x84\xf9\xf7" +
+	"X\xf4/\xff\x92\xb4\x0f8)!8\xbe\xe5\xe8\x8f\x17" +
+	"\xaa\x0a\xaa\xd8DQfU\xd1\xd6\x04C\xb7h\xad\x08" +
+	"\xff\x17\xd7\xe2\xbf\x19\xf2\xdfOhwo\x89\xd2\xbf\x9c" +
+	"\xd0v\xec\x0e\x99.\xc58\x8f\xfe\x8f\xee\x03P\xf6\xf0" +
+	"\xa8|\x93\xc3N\xaf\xd6\xc2\xa6\xb0iS\xa6\xacWQ" +
+	",7\xa0-\xab\xe6\xc3\xa4\xe7\x98\xac\x98W\xb3l)" +
+	"\x96\xab'@\x04\x0e\xd1\xf5\x93B\xd1d\x96\x85\x9a\xa1" +
+	"+%5\xaf\xf1\xf6\xfa\xa0\xe2\xd5K\x85~\x93\x8di" +
+	"h\x94\xacn\xdbf\x05\xa1h[\x17R\x0f\x87\x00Q" +
+	"\x90\x14\xb4\xbc\x0bP\xa4`\xa2\xca\xb1\x8bGey\x04" +
+	"\xa0^\xca\x91\xd7\xf1\xa8\xac\x0e\x01R\xbe\x07\xa0\xac\xe6" +
+	"Q\xb9\x99C\xb1T\xd2\x82\xa4\xe0\xe4\x8d\xac{\xda " +
+	"\xaeT\x0b\x95\xb9\xa1\xd7\xe2\xd2\xac`\xd8,\xbf\xde\xe3" +
+	"h.\xdc\xf1\x85\xc6\xe6\x8a \xe9'\xb3\xdf\xa7\xaao" +
+	"\xe2\x8b\x16\x81\x03\x15\xb8\xb7\xd7\xc2}Ad\x1f\xbe\xc9" +
+	"+\x06\xc3}\x08\x7f\xc1\xd6\xfbV\xb5\xb1\x02%=\x1f" +
+	"\xee\xf2f\xbaA\xb8>\xd4\x99j,r}p\xb9\x91" +
+	"U\xf3\x95!D\xacL\x86\xd1\xb2\xe5\xc2\xc3Ct\xd1" +
+	"U\xc56\x17V\x02\xe6\x1a\x7fby=\xf6\x01d\xd6" +
+	"!\x8f\x99\xad\x18b#o\xc6%\x00\x99\xdbH~\x17" +
+	"\x86\xf0\xc8\xdb0\x05\x90\xd9D\xf2{1\xb8\x85\xcaw" +
+	"\xe3~\x80\xcc\xbd$~\x98\xd4c\xbc\xeb\xbd\xf2.w" +
+	"\xfa\x9d$\xdfC\xf2x,\x89q\x00\xf9Q\x9c\x07\x90" +
+	"y\x98\xe4\x07H^\xc7%\xb1\x0e@~\x0aG\x012" +
+	"O\x92\xfcY\x92\x0b\xf1$]\xc4\xe5\x83h\x02d\xfe" +
+	"\x9e\xe4\xdf'y\xfd\xcc$\xd6\x03\xc8\x87\\\xf9\xf3$" +
+	"\xff\x11\xc9\x1bZ\x92\xd8\x00 \x1f\xc6-\x00\x99\x1f\x92" +
+	"\xfc5\x92O\xc3$N\x03\x90\x8f\xe2n\x80\xcck$" +
+	"\xff7\x92_R\x97\xc4K\x00\xe4\xb7\\{\x8e\x91\xfc" +
+	"W$o\x8c%\xb1\x11@\xfe\x05\xee\x03\xc8\xfc\x8a\xe4" +
+	"\xffM\xf2\x84\x90\xc4\x04\x80\xfc\x8e\xbb\xaf\xd3$\xaf\xe7" +
+	"*.\x81>\x8d+nz\xbca\x05<a\xe5p\x84" +
+	"\x9e\x8f\xf5\x1b\"\xdd\xe6P\x0c\xfb\xcb\x80(\x02:E" +
+	"\xc3\xc8\xaf\x1c\xef\x1e\xa2\xad\x0e[\xfe\xad\xb2)\xec\xaf" +
+	"\x01\x920\xa8\xd3@4\xf4\xde\\\x10\xb3*\x03\xa4o" +
+	"\x89fu\x97l\xa3T\x846\xe2b.\x08\x16fI" +
+	"_f\x1a\x85\xd5\xc8\xcc\x82\xa6\xab\xf9I\x02g\x03p" +
+	"\xd8\x00\xe5H\xe5\xcf=q\x14\xfd\xe8;r\xc0h\xae" +
+	"\x92\xd1m\xc5\xc5\xab\xd5\xe1\x8ak\xc7\xbc0\xbb\x06\xae" +
+	"=\x7fA\x98^E=\x12'\xdb\xc6\xd4|\xa9\xba\xa2" +
+	"\xae\x9bb\xe9\x97\xee\xf4J\xc7\xc9n\x16~\x9b\xac\"" +
+	"~\xd5(\x84\x06\xaaK\x894\xb3\xda\x82~Qd\xc3" +
+	"\xfb\xc3k\x83\xbf\xdfE\xed\x91kV^\xb5\x99ew" +
+	"\x17\xb1\x98\xd7X\xee\xb3\xcc\x14\xa3\xd5E\xcd\xe2)6" +
+	"\xd9\x8db|E\x86\x91\xc7\x00\xda8W\xde\xf0\x05\xe3" +
+	"9\xccl\xefW\xaf>dP\xc9$D\xeb\xc4\xa9\x8d" +
+	"N3K\xbc\x90\xb3\x08\xfb\x9b\x93\xd7\xb9S\x89\xd6i" +
+	"\xd6\xe6ra\xa2[c\x8d\xf9j\xd4\xa1\xfe%(\xd2" +
+	"! r\xaf\xe5Q\x19\x89\x90\x9b\xf5\xd5\xe8\x10\xa4\xc3" +
+	"\xd6\xa0\xc4s\xe5\xde \xa5\xdf\"\x8f\xcam\x1c\x8aj" +
+	"\xc9\x1e\xc1\xa6\xf0\xcdh\x1c\x08\xe3\xdbW\xc4\xf5^=" +
+	"\xc7\x00\xd7\xf9\xee\x1aI\xca\xc1c\xc6o\x05\xe3G\x96" +
+	"\xdf\x16Lz\x80AC\xbfb\xe5\x8f\xecRtz\x8b" +
+	"\x12og\xba\x05\xb1\xffV\x82~3\\zj\x03p" +
+	"\xd27\x04\x0c\x1f\x00\xd0\xef\xf7K\x8f\x9a\xc0I\xbb\x04" +
+	"\xe4\x82\xe7,\xf4\x9f\xad\xa4\xbb\xef\x01N\xda& \x1f" +
+	"\xbcF\xa1\xdf \xeeX?\x0d\x81\x93n\x170\x16<" +
+	"\x03\xa2\xdf^\x96n\x19\x05N\xd2\x04\x8c\x07\x0f]\xe8" +
+	"\xbf{H7m\x01N\x1a\x08\xdb\xa0\xd0\xe9\xed\xa3\x0b" +
+	"\x1d\x9f\xf3\xd0\xe6\xb2~|S\xd4\xd3\x02\xe8B\xc7\xbf" +
+	"\x94\xf1\x1fu+s\xb5\xfc\xbe\x1e\x88Y\xd5f]T" +
+	"({\x01\x0e\xcb\x11\x0e\xbaP\x89a\xa4\xbb\x0ep\xb1" +
+	"]\x91*?\x99b!\xea\x8f\xff-c._\xcbj" +
+	"Z'\xe8\x0fG\xe6\xa5\x8a\xbc\x91Ge&7I\xc1" +
+	"]3tz\x06\xfb\xe4\x17i0\xcd\xff\x07\xc1\xfcG" +
+	")\\\xff\x88G\xe5X\xc4\xad_'\xe1\xab<*o" +
+	"F\xca\xd17\xc8\xd7\x8f\xf1\xa8|\x10\xb6\xfc\xdf\xbb\x07" +
+	"@\xf9\x80\xc7t\xa4\xd2\x92\xce\x93\xe2o\xa8\x1eq\xeb" +
+	",\xf4\xea\xac8>\x00\x90\xa9\xa7:%\xe9\xd6Y1" +
+	"\xaf\xce\x92p\x10 \xd3D\xf2Y\xd1:\xab\x05\xd7\x00" +
+	"df\x92|6\x8e\xbfh\x0b%3,\x7f\xf3\xc6\xf0" +
+	"rM\xaf\x99\xbc\xfd7\x08\xb4\x97\xa9Z\xbed2\xa8" +
+	"\xbc\x82\xf4\xf6D\xca\x19\xefq\xc2\xebCf\x88\x849" +
+	"\xb4\x82\x1e\xe5\x14Z\x1c\x13e\xb2\xbcQ\xca\x0d\xe5U" +
+	"\x93\xe52\xcc\x14\xbc\x80\xd0\xcf\xc7\x95z\x8c\xfc\xb3\x00" +
+	"@\xf8\xa8\x1b!\xfb\x84\x99q\xa9i\x1ahV\\5" +
+	"\x16\x84W\x8d\xe0\xa6\xb1&\xbc\xe1I\\W\xf9\x8a7" +
+	"\x18^\x8e\xda\xb2j\xc9bU\x98\x00\xcf\xcc\xa0\xcde" +
+	"\x8d\x18\xa5|.\xcd@\xb0\xcd\xf5U\xb7\xba\xd8d\xd1" +
+	"W\xf4#a\xa3\x1b\x09\xfd\x97I\xf4\x1f %e7" +
+	"p\xd2\x0a\x8a\x84\xfe#\x19\xfa/\xe4R\xf7~\xe0\xa4" +
+	"?\xa7H\xe8\xbf\x0f\xa3\xff\xe8)u\xbc\x04\x9c\xd4\x11" +
+	"y\xbb\xf1\xf1\xa9z\xbb\xf1>\xb8\xfe@\x1f\xca\x09\x95" +
+	"\xab\xcc\xa8\x14\xa1\xa2\x8d\x88\x8b\xe8\xecx\x095r\x9c" +
+	"Sz\xf0\xb8\xe0w\x82\xe0\xffS*bN\xc3\xc5v" +
+	"\xd0\xfc\xd4\xf8\xff\x01\x00\x00\xff\xff|\xba\xdf\xe8"
 
 func init() {
 	schemas.Register(schema_db8274f9144abc7e,
@@ -4561,6 +4784,7 @@ func init() {
 		0xb5f39f082b9ac18a,
 		0xb70431c0dc014915,
 		0xc082ef6e0d42ed1d,
+		0xc5d6e311876a3604,
 		0xc793e50592935b4a,
 		0xcbd96442ae3bb01a,
 		0xd4d18de97bb12de3,
@@ -4568,6 +4792,7 @@ func init() {
 		0xdbaa9d03d52b62dc,
 		0xdc3ed6801961e502,
 		0xe3e37d096a5b564e,
+		0xe5ceae5d6897d7be,
 		0xe6646dec8feaa6ee,
 		0xea50d822450d1f17,
 		0xea58385c65416035,

vendor/golang.org/x/crypto/chacha20/chacha_s390x.go

@@ -15,6 +15,7 @@ const bufSize = 256
 
 // xorKeyStreamVX is an assembly implementation of XORKeyStream. It must only
 // be called when the vector facility is available. Implementation in asm_s390x.s.
+//
 //go:noescape
 func xorKeyStreamVX(dst, src []byte, key *[8]uint32, nonce *[3]uint32, counter *uint32)
 

vendor/golang.org/x/crypto/cryptobyte/asn1.go

@@ -407,7 +407,12 @@ func (s *String) ReadASN1Enum(out *int) bool {
 func (s *String) readBase128Int(out *int) bool {
 	ret := 0
 	for i := 0; len(*s) > 0; i++ {
-		if i == 4 {
+		if i == 5 {
+			return false
+		}
+		// Avoid overflowing int on a 32-bit platform.
+		// We don't want different behavior based on the architecture.
+		if ret >= 1<<(31-7) {
 			return false
 		}
 		ret <<= 7

vendor/golang.org/x/crypto/cryptobyte/builder.go

@@ -106,13 +106,13 @@ func (b *Builder) AddBytes(v []byte) {
 // supplied to them. The child builder passed to the continuation can be used
 // to build the content of the length-prefixed sequence. For example:
 //
-//   parent := cryptobyte.NewBuilder()
-//   parent.AddUint8LengthPrefixed(func (child *Builder) {
-//     child.AddUint8(42)
-//     child.AddUint8LengthPrefixed(func (grandchild *Builder) {
-//       grandchild.AddUint8(5)
-//     })
-//   })
+//	parent := cryptobyte.NewBuilder()
+//	parent.AddUint8LengthPrefixed(func (child *Builder) {
+//	  child.AddUint8(42)
+//	  child.AddUint8LengthPrefixed(func (grandchild *Builder) {
+//	    grandchild.AddUint8(5)
+//	  })
+//	})
 //
 // It is an error to write more bytes to the child than allowed by the reserved
 // length prefix. After the continuation returns, the child must be considered

vendor/golang.org/x/crypto/curve25519/internal/field/fe_amd64.go

@@ -1,13 +1,16 @@
 // Code generated by command: go run fe_amd64_asm.go -out ../fe_amd64.s -stubs ../fe_amd64.go -pkg field. DO NOT EDIT.
 
+//go:build amd64 && gc && !purego
 // +build amd64,gc,!purego
 
 package field
 
 // feMul sets out = a * b. It works like feMulGeneric.
+//
 //go:noescape
 func feMul(out *Element, a *Element, b *Element)
 
 // feSquare sets out = a * a. It works like feSquareGeneric.
+//
 //go:noescape
 func feSquare(out *Element, a *Element)

vendor/golang.org/x/crypto/ed25519/ed25519.go

@@ -1,13 +1,7 @@
-// Copyright 2016 The Go Authors. All rights reserved.
+// Copyright 2019 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// In Go 1.13, the ed25519 package was promoted to the standard library as
-// crypto/ed25519, and this package became a wrapper for the standard library one.
-//
-//go:build !go1.13
-// +build !go1.13
-
 // Package ed25519 implements the Ed25519 signature algorithm. See
 // https://ed25519.cr.yp.to/.
 //
@@ -16,21 +10,15 @@
 // representation includes a public key suffix to make multiple signing
 // operations with the same key more efficient. This package refers to the RFC
 // 8032 private key as the “seed”.
+//
+// Beginning with Go 1.13, the functionality of this package was moved to the
+// standard library as crypto/ed25519. This package only acts as a compatibility
+// wrapper.
 package ed25519
 
-// This code is a port of the public domain, “ref10” implementation of ed25519
-// from SUPERCOP.
-
 import (
-	"bytes"
-	"crypto"
-	cryptorand "crypto/rand"
-	"crypto/sha512"
-	"errors"
+	"crypto/ed25519"
 	"io"
-	"strconv"
-
-	"golang.org/x/crypto/ed25519/internal/edwards25519"
 )
 
 const (
@@ -45,57 +33,21 @@ const (
 )
 
 // PublicKey is the type of Ed25519 public keys.
-type PublicKey []byte
+//
+// This type is an alias for crypto/ed25519's PublicKey type.
+// See the crypto/ed25519 package for the methods on this type.
+type PublicKey = ed25519.PublicKey
 
 // PrivateKey is the type of Ed25519 private keys. It implements crypto.Signer.
-type PrivateKey []byte
-
-// Public returns the PublicKey corresponding to priv.
-func (priv PrivateKey) Public() crypto.PublicKey {
-	publicKey := make([]byte, PublicKeySize)
-	copy(publicKey, priv[32:])
-	return PublicKey(publicKey)
-}
-
-// Seed returns the private key seed corresponding to priv. It is provided for
-// interoperability with RFC 8032. RFC 8032's private keys correspond to seeds
-// in this package.
-func (priv PrivateKey) Seed() []byte {
-	seed := make([]byte, SeedSize)
-	copy(seed, priv[:32])
-	return seed
-}
-
-// Sign signs the given message with priv.
-// Ed25519 performs two passes over messages to be signed and therefore cannot
-// handle pre-hashed messages. Thus opts.HashFunc() must return zero to
-// indicate the message hasn't been hashed. This can be achieved by passing
-// crypto.Hash(0) as the value for opts.
-func (priv PrivateKey) Sign(rand io.Reader, message []byte, opts crypto.SignerOpts) (signature []byte, err error) {
-	if opts.HashFunc() != crypto.Hash(0) {
-		return nil, errors.New("ed25519: cannot sign hashed message")
-	}
-
-	return Sign(priv, message), nil
-}
+//
+// This type is an alias for crypto/ed25519's PrivateKey type.
+// See the crypto/ed25519 package for the methods on this type.
+type PrivateKey = ed25519.PrivateKey
 
 // GenerateKey generates a public/private key pair using entropy from rand.
 // If rand is nil, crypto/rand.Reader will be used.
 func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error) {
-	if rand == nil {
-		rand = cryptorand.Reader
-	}
-
-	seed := make([]byte, SeedSize)
-	if _, err := io.ReadFull(rand, seed); err != nil {
-		return nil, nil, err
-	}
-
-	privateKey := NewKeyFromSeed(seed)
-	publicKey := make([]byte, PublicKeySize)
-	copy(publicKey, privateKey[32:])
-
-	return publicKey, privateKey, nil
+	return ed25519.GenerateKey(rand)
 }
 
 // NewKeyFromSeed calculates a private key from a seed. It will panic if
@@ -103,121 +55,17 @@ func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error) {
 // with RFC 8032. RFC 8032's private keys correspond to seeds in this
 // package.
 func NewKeyFromSeed(seed []byte) PrivateKey {
-	if l := len(seed); l != SeedSize {
-		panic("ed25519: bad seed length: " + strconv.Itoa(l))
-	}
-
-	digest := sha512.Sum512(seed)
-	digest[0] &= 248
-	digest[31] &= 127
-	digest[31] |= 64
-
-	var A edwards25519.ExtendedGroupElement
-	var hBytes [32]byte
-	copy(hBytes[:], digest[:])
-	edwards25519.GeScalarMultBase(&A, &hBytes)
-	var publicKeyBytes [32]byte
-	A.ToBytes(&publicKeyBytes)
-
-	privateKey := make([]byte, PrivateKeySize)
-	copy(privateKey, seed)
-	copy(privateKey[32:], publicKeyBytes[:])
-
-	return privateKey
+	return ed25519.NewKeyFromSeed(seed)
 }
 
 // Sign signs the message with privateKey and returns a signature. It will
 // panic if len(privateKey) is not PrivateKeySize.
 func Sign(privateKey PrivateKey, message []byte) []byte {
-	if l := len(privateKey); l != PrivateKeySize {
-		panic("ed25519: bad private key length: " + strconv.Itoa(l))
-	}
-
-	h := sha512.New()
-	h.Write(privateKey[:32])
-
-	var digest1, messageDigest, hramDigest [64]byte
-	var expandedSecretKey [32]byte
-	h.Sum(digest1[:0])
-	copy(expandedSecretKey[:], digest1[:])
-	expandedSecretKey[0] &= 248
-	expandedSecretKey[31] &= 63
-	expandedSecretKey[31] |= 64
-
-	h.Reset()
-	h.Write(digest1[32:])
-	h.Write(message)
-	h.Sum(messageDigest[:0])
-
-	var messageDigestReduced [32]byte
-	edwards25519.ScReduce(&messageDigestReduced, &messageDigest)
-	var R edwards25519.ExtendedGroupElement
-	edwards25519.GeScalarMultBase(&R, &messageDigestReduced)
-
-	var encodedR [32]byte
-	R.ToBytes(&encodedR)
-
-	h.Reset()
-	h.Write(encodedR[:])
-	h.Write(privateKey[32:])
-	h.Write(message)
-	h.Sum(hramDigest[:0])
-	var hramDigestReduced [32]byte
-	edwards25519.ScReduce(&hramDigestReduced, &hramDigest)
-
-	var s [32]byte
-	edwards25519.ScMulAdd(&s, &hramDigestReduced, &expandedSecretKey, &messageDigestReduced)
-
-	signature := make([]byte, SignatureSize)
-	copy(signature[:], encodedR[:])
-	copy(signature[32:], s[:])
-
-	return signature
+	return ed25519.Sign(privateKey, message)
 }
 
 // Verify reports whether sig is a valid signature of message by publicKey. It
 // will panic if len(publicKey) is not PublicKeySize.
 func Verify(publicKey PublicKey, message, sig []byte) bool {
-	if l := len(publicKey); l != PublicKeySize {
-		panic("ed25519: bad public key length: " + strconv.Itoa(l))
-	}
-
-	if len(sig) != SignatureSize || sig[63]&224 != 0 {
-		return false
-	}
-
-	var A edwards25519.ExtendedGroupElement
-	var publicKeyBytes [32]byte
-	copy(publicKeyBytes[:], publicKey)
-	if !A.FromBytes(&publicKeyBytes) {
-		return false
-	}
-	edwards25519.FeNeg(&A.X, &A.X)
-	edwards25519.FeNeg(&A.T, &A.T)
-
-	h := sha512.New()
-	h.Write(sig[:32])
-	h.Write(publicKey[:])
-	h.Write(message)
-	var digest [64]byte
-	h.Sum(digest[:0])
-
-	var hReduced [32]byte
-	edwards25519.ScReduce(&hReduced, &digest)
-
-	var R edwards25519.ProjectiveGroupElement
-	var s [32]byte
-	copy(s[:], sig[32:])
-
-	// https://tools.ietf.org/html/rfc8032#section-5.1.7 requires that s be in
-	// the range [0, order) in order to prevent signature malleability.
-	if !edwards25519.ScMinimal(&s) {
-		return false
-	}
-
-	edwards25519.GeDoubleScalarMultVartime(&R, &hReduced, &A, &s)
-
-	var checkR [32]byte
-	R.ToBytes(&checkR)
-	return bytes.Equal(sig[:32], checkR[:])
+	return ed25519.Verify(publicKey, message, sig)
 }

vendor/golang.org/x/crypto/ed25519/ed25519_go113.go

@@ -1,74 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build go1.13
-// +build go1.13
-
-// Package ed25519 implements the Ed25519 signature algorithm. See
-// https://ed25519.cr.yp.to/.
-//
-// These functions are also compatible with the “Ed25519” function defined in
-// RFC 8032. However, unlike RFC 8032's formulation, this package's private key
-// representation includes a public key suffix to make multiple signing
-// operations with the same key more efficient. This package refers to the RFC
-// 8032 private key as the “seed”.
-//
-// Beginning with Go 1.13, the functionality of this package was moved to the
-// standard library as crypto/ed25519. This package only acts as a compatibility
-// wrapper.
-package ed25519
-
-import (
-	"crypto/ed25519"
-	"io"
-)
-
-const (
-	// PublicKeySize is the size, in bytes, of public keys as used in this package.
-	PublicKeySize = 32
-	// PrivateKeySize is the size, in bytes, of private keys as used in this package.
-	PrivateKeySize = 64
-	// SignatureSize is the size, in bytes, of signatures generated and verified by this package.
-	SignatureSize = 64
-	// SeedSize is the size, in bytes, of private key seeds. These are the private key representations used by RFC 8032.
-	SeedSize = 32
-)
-
-// PublicKey is the type of Ed25519 public keys.
-//
-// This type is an alias for crypto/ed25519's PublicKey type.
-// See the crypto/ed25519 package for the methods on this type.
-type PublicKey = ed25519.PublicKey
-
-// PrivateKey is the type of Ed25519 private keys. It implements crypto.Signer.
-//
-// This type is an alias for crypto/ed25519's PrivateKey type.
-// See the crypto/ed25519 package for the methods on this type.
-type PrivateKey = ed25519.PrivateKey
-
-// GenerateKey generates a public/private key pair using entropy from rand.
-// If rand is nil, crypto/rand.Reader will be used.
-func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error) {
-	return ed25519.GenerateKey(rand)
-}
-
-// NewKeyFromSeed calculates a private key from a seed. It will panic if
-// len(seed) is not SeedSize. This function is provided for interoperability
-// with RFC 8032. RFC 8032's private keys correspond to seeds in this
-// package.
-func NewKeyFromSeed(seed []byte) PrivateKey {
-	return ed25519.NewKeyFromSeed(seed)
-}
-
-// Sign signs the message with privateKey and returns a signature. It will
-// panic if len(privateKey) is not PrivateKeySize.
-func Sign(privateKey PrivateKey, message []byte) []byte {
-	return ed25519.Sign(privateKey, message)
-}
-
-// Verify reports whether sig is a valid signature of message by publicKey. It
-// will panic if len(publicKey) is not PublicKeySize.
-func Verify(publicKey PublicKey, message, sig []byte) bool {
-	return ed25519.Verify(publicKey, message, sig)
-}

vendor/golang.org/x/crypto/internal/poly1305/sum_generic.go

@@ -136,7 +136,7 @@ func shiftRightBy2(a uint128) uint128 {
 // updateGeneric absorbs msg into the state.h accumulator. For each chunk m of
 // 128 bits of message, it computes
 //
-//     h₊ = (h + m) * r  mod  2¹³⁰ - 5
+//	h₊ = (h + m) * r  mod  2¹³⁰ - 5
 //
 // If the msg length is not a multiple of TagSize, it assumes the last
 // incomplete chunk is the final one.
@@ -278,8 +278,7 @@ const (
 
 // finalize completes the modular reduction of h and computes
 //
-//     out = h + s  mod  2¹²⁸
-//
+//	out = h + s  mod  2¹²⁸
 func finalize(out *[TagSize]byte, h *[3]uint64, s *[2]uint64) {
 	h0, h1, h2 := h[0], h[1], h[2]
 

vendor/golang.org/x/crypto/internal/poly1305/sum_s390x.go

@@ -14,6 +14,7 @@ import (
 // updateVX is an assembly implementation of Poly1305 that uses vector
 // instructions. It must only be called if the vector facility (vx) is
 // available.
+//
 //go:noescape
 func updateVX(state *macState, msg []byte)
 

vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go

@@ -32,7 +32,7 @@ import (
 // can get a derived key for e.g. AES-256 (which needs a 32-byte key) by
 // doing:
 //
-// 	dk := pbkdf2.Key([]byte("some password"), salt, 4096, 32, sha1.New)
+//	dk := pbkdf2.Key([]byte("some password"), salt, 4096, 32, sha1.New)
 //
 // Remember to get a good random salt. At least 8 bytes is recommended by the
 // RFC.

vendor/golang.org/x/crypto/ssh/certs.go

@@ -14,8 +14,10 @@ import (
 	"time"
 )
 
-// These constants from [PROTOCOL.certkeys] represent the algorithm names
-// for certificate types supported by this package.
+// Certificate algorithm names from [PROTOCOL.certkeys]. These values can appear
+// in Certificate.Type, PublicKey.Type, and ClientConfig.HostKeyAlgorithms.
+// Unlike key algorithm names, these are not passed to AlgorithmSigner and don't
+// appear in the Signature.Format field.
 const (
 	CertAlgoRSAv01        = "ssh-rsa-cert-v01@openssh.com"
 	CertAlgoDSAv01        = "ssh-dss-cert-v01@openssh.com"
@@ -25,6 +27,21 @@ const (
 	CertAlgoSKECDSA256v01 = "sk-ecdsa-sha2-nistp256-cert-v01@openssh.com"
 	CertAlgoED25519v01    = "ssh-ed25519-cert-v01@openssh.com"
 	CertAlgoSKED25519v01  = "sk-ssh-ed25519-cert-v01@openssh.com"
+
+	// CertAlgoRSASHA256v01 and CertAlgoRSASHA512v01 can't appear as a
+	// Certificate.Type (or PublicKey.Type), but only in
+	// ClientConfig.HostKeyAlgorithms.
+	CertAlgoRSASHA256v01 = "rsa-sha2-256-cert-v01@openssh.com"
+	CertAlgoRSASHA512v01 = "rsa-sha2-512-cert-v01@openssh.com"
+)
+
+const (
+	// Deprecated: use CertAlgoRSAv01.
+	CertSigAlgoRSAv01 = CertAlgoRSAv01
+	// Deprecated: use CertAlgoRSASHA256v01.
+	CertSigAlgoRSASHA2256v01 = CertAlgoRSASHA256v01
+	// Deprecated: use CertAlgoRSASHA512v01.
+	CertSigAlgoRSASHA2512v01 = CertAlgoRSASHA512v01
 )
 
 // Certificate types distinguish between host and user
@@ -423,6 +440,16 @@ func (c *Certificate) SignCert(rand io.Reader, authority Signer) error {
 	}
 	c.SignatureKey = authority.PublicKey()
 
+	// Default to KeyAlgoRSASHA512 for ssh-rsa signers.
+	if v, ok := authority.(AlgorithmSigner); ok && v.PublicKey().Type() == KeyAlgoRSA {
+		sig, err := v.SignWithAlgorithm(rand, c.bytesForSigning(), KeyAlgoRSASHA512)
+		if err != nil {
+			return err
+		}
+		c.Signature = sig
+		return nil
+	}
+
 	sig, err := authority.Sign(rand, c.bytesForSigning())
 	if err != nil {
 		return err
@@ -431,26 +458,40 @@ func (c *Certificate) SignCert(rand io.Reader, authority Signer) error {
 	return nil
 }
 
-var certAlgoNames = map[string]string{
-	KeyAlgoRSA:        CertAlgoRSAv01,
-	KeyAlgoDSA:        CertAlgoDSAv01,
-	KeyAlgoECDSA256:   CertAlgoECDSA256v01,
-	KeyAlgoECDSA384:   CertAlgoECDSA384v01,
-	KeyAlgoECDSA521:   CertAlgoECDSA521v01,
-	KeyAlgoSKECDSA256: CertAlgoSKECDSA256v01,
-	KeyAlgoED25519:    CertAlgoED25519v01,
-	KeyAlgoSKED25519:  CertAlgoSKED25519v01,
+// certKeyAlgoNames is a mapping from known certificate algorithm names to the
+// corresponding public key signature algorithm.
+var certKeyAlgoNames = map[string]string{
+	CertAlgoRSAv01:        KeyAlgoRSA,
+	CertAlgoRSASHA256v01:  KeyAlgoRSASHA256,
+	CertAlgoRSASHA512v01:  KeyAlgoRSASHA512,
+	CertAlgoDSAv01:        KeyAlgoDSA,
+	CertAlgoECDSA256v01:   KeyAlgoECDSA256,
+	CertAlgoECDSA384v01:   KeyAlgoECDSA384,
+	CertAlgoECDSA521v01:   KeyAlgoECDSA521,
+	CertAlgoSKECDSA256v01: KeyAlgoSKECDSA256,
+	CertAlgoED25519v01:    KeyAlgoED25519,
+	CertAlgoSKED25519v01:  KeyAlgoSKED25519,
 }
 
-// certToPrivAlgo returns the underlying algorithm for a certificate algorithm.
-// Panics if a non-certificate algorithm is passed.
-func certToPrivAlgo(algo string) string {
-	for privAlgo, pubAlgo := range certAlgoNames {
-		if pubAlgo == algo {
-			return privAlgo
+// underlyingAlgo returns the signature algorithm associated with algo (which is
+// an advertised or negotiated public key or host key algorithm). These are
+// usually the same, except for certificate algorithms.
+func underlyingAlgo(algo string) string {
+	if a, ok := certKeyAlgoNames[algo]; ok {
+		return a
+	}
+	return algo
+}
+
+// certificateAlgo returns the certificate algorithms that uses the provided
+// underlying signature algorithm.
+func certificateAlgo(algo string) (certAlgo string, ok bool) {
+	for certName, algoName := range certKeyAlgoNames {
+		if algoName == algo {
+			return certName, true
 		}
 	}
-	panic("unknown cert algorithm")
+	return "", false
 }
 
 func (cert *Certificate) bytesForSigning() []byte {
@@ -494,13 +535,13 @@ func (c *Certificate) Marshal() []byte {
 	return result
 }
 
-// Type returns the key name. It is part of the PublicKey interface.
+// Type returns the certificate algorithm name. It is part of the PublicKey interface.
 func (c *Certificate) Type() string {
-	algo, ok := certAlgoNames[c.Key.Type()]
+	certName, ok := certificateAlgo(c.Key.Type())
 	if !ok {
-		panic("unknown cert key type " + c.Key.Type())
+		panic("unknown certificate type for key type " + c.Key.Type())
 	}
-	return algo
+	return certName
 }
 
 // Verify verifies a signature against the certificate's public

vendor/golang.org/x/crypto/ssh/cipher.go

@@ -394,6 +394,10 @@ func (c *gcmCipher) readCipherPacket(seqNum uint32, r io.Reader) ([]byte, error)
 	}
 	c.incIV()
 
+	if len(plain) == 0 {
+		return nil, errors.New("ssh: empty packet")
+	}
+
 	padding := plain[0]
 	if padding < 4 {
 		// padding is a byte, so it automatically satisfies
@@ -636,7 +640,7 @@ const chacha20Poly1305ID = "chacha20-poly1305@openssh.com"
 // chacha20Poly1305Cipher implements the chacha20-poly1305@openssh.com
 // AEAD, which is described here:
 //
-//   https://tools.ietf.org/html/draft-josefsson-ssh-chacha20-poly1305-openssh-00
+//	https://tools.ietf.org/html/draft-josefsson-ssh-chacha20-poly1305-openssh-00
 //
 // the methods here also implement padding, which RFC4253 Section 6
 // also requires of stream ciphers.
@@ -710,6 +714,10 @@ func (c *chacha20Poly1305Cipher) readCipherPacket(seqNum uint32, r io.Reader) ([
 	plain := c.buf[4:contentEnd]
 	s.XORKeyStream(plain, plain)
 
+	if len(plain) == 0 {
+		return nil, errors.New("ssh: empty packet")
+	}
+
 	padding := plain[0]
 	if padding < 4 {
 		// padding is a byte, so it automatically satisfies

vendor/golang.org/x/crypto/ssh/client.go

@@ -113,14 +113,18 @@ func (c *connection) clientHandshake(dialAddress string, config *ClientConfig) e
 	return c.clientAuthenticate(config)
 }
 
-// verifyHostKeySignature verifies the host key obtained in the key
-// exchange.
-func verifyHostKeySignature(hostKey PublicKey, result *kexResult) error {
+// verifyHostKeySignature verifies the host key obtained in the key exchange.
+// algo is the negotiated algorithm, and may be a certificate type.
+func verifyHostKeySignature(hostKey PublicKey, algo string, result *kexResult) error {
 	sig, rest, ok := parseSignatureBody(result.Signature)
 	if len(rest) > 0 || !ok {
 		return errors.New("ssh: signature parse error")
 	}
 
+	if a := underlyingAlgo(algo); sig.Format != a {
+		return fmt.Errorf("ssh: invalid signature algorithm %q, expected %q", sig.Format, a)
+	}
+
 	return hostKey.Verify(result.H, sig)
 }
 
@@ -224,11 +228,11 @@ type ClientConfig struct {
 	// be used for the connection. If empty, a reasonable default is used.
 	ClientVersion string
 
-	// HostKeyAlgorithms lists the key types that the client will
-	// accept from the server as host key, in order of
+	// HostKeyAlgorithms lists the public key algorithms that the client will
+	// accept from the server for host key authentication, in order of
 	// preference. If empty, a reasonable default is used. Any
-	// string returned from PublicKey.Type method may be used, or
-	// any of the CertAlgoXxxx and KeyAlgoXxxx constants.
+	// string returned from a PublicKey.Type method may be used, or
+	// any of the CertAlgo and KeyAlgo constants.
 	HostKeyAlgorithms []string
 
 	// Timeout is the maximum amount of time for the TCP connection to establish.

vendor/golang.org/x/crypto/ssh/client_auth.go

@@ -9,6 +9,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"strings"
 )
 
 type authResult int
@@ -29,6 +30,33 @@ func (c *connection) clientAuthenticate(config *ClientConfig) error {
 	if err != nil {
 		return err
 	}
+	// The server may choose to send a SSH_MSG_EXT_INFO at this point (if we
+	// advertised willingness to receive one, which we always do) or not. See
+	// RFC 8308, Section 2.4.
+	extensions := make(map[string][]byte)
+	if len(packet) > 0 && packet[0] == msgExtInfo {
+		var extInfo extInfoMsg
+		if err := Unmarshal(packet, &extInfo); err != nil {
+			return err
+		}
+		payload := extInfo.Payload
+		for i := uint32(0); i < extInfo.NumExtensions; i++ {
+			name, rest, ok := parseString(payload)
+			if !ok {
+				return parseError(msgExtInfo)
+			}
+			value, rest, ok := parseString(rest)
+			if !ok {
+				return parseError(msgExtInfo)
+			}
+			extensions[string(name)] = value
+			payload = rest
+		}
+		packet, err = c.transport.readPacket()
+		if err != nil {
+			return err
+		}
+	}
 	var serviceAccept serviceAcceptMsg
 	if err := Unmarshal(packet, &serviceAccept); err != nil {
 		return err
@@ -41,7 +69,7 @@ func (c *connection) clientAuthenticate(config *ClientConfig) error {
 
 	sessionID := c.transport.getSessionID()
 	for auth := AuthMethod(new(noneAuth)); auth != nil; {
-		ok, methods, err := auth.auth(sessionID, config.User, c.transport, config.Rand)
+		ok, methods, err := auth.auth(sessionID, config.User, c.transport, config.Rand, extensions)
 		if err != nil {
 			return err
 		}
@@ -93,7 +121,7 @@ type AuthMethod interface {
 	// If authentication is not successful, a []string of alternative
 	// method names is returned. If the slice is nil, it will be ignored
 	// and the previous set of possible methods will be reused.
-	auth(session []byte, user string, p packetConn, rand io.Reader) (authResult, []string, error)
+	auth(session []byte, user string, p packetConn, rand io.Reader, extensions map[string][]byte) (authResult, []string, error)
 
 	// method returns the RFC 4252 method name.
 	method() string
@@ -102,7 +130,7 @@ type AuthMethod interface {
 // "none" authentication, RFC 4252 section 5.2.
 type noneAuth int
 
-func (n *noneAuth) auth(session []byte, user string, c packetConn, rand io.Reader) (authResult, []string, error) {
+func (n *noneAuth) auth(session []byte, user string, c packetConn, rand io.Reader, _ map[string][]byte) (authResult, []string, error) {
 	if err := c.writePacket(Marshal(&userAuthRequestMsg{
 		User:    user,
 		Service: serviceSSH,
@@ -122,7 +150,7 @@ func (n *noneAuth) method() string {
 // a function call, e.g. by prompting the user.
 type passwordCallback func() (password string, err error)
 
-func (cb passwordCallback) auth(session []byte, user string, c packetConn, rand io.Reader) (authResult, []string, error) {
+func (cb passwordCallback) auth(session []byte, user string, c packetConn, rand io.Reader, _ map[string][]byte) (authResult, []string, error) {
 	type passwordAuthMsg struct {
 		User     string `sshtype:"50"`
 		Service  string
@@ -189,7 +217,46 @@ func (cb publicKeyCallback) method() string {
 	return "publickey"
 }
 
-func (cb publicKeyCallback) auth(session []byte, user string, c packetConn, rand io.Reader) (authResult, []string, error) {
+func pickSignatureAlgorithm(signer Signer, extensions map[string][]byte) (as AlgorithmSigner, algo string) {
+	keyFormat := signer.PublicKey().Type()
+
+	// Like in sendKexInit, if the public key implements AlgorithmSigner we
+	// assume it supports all algorithms, otherwise only the key format one.
+	as, ok := signer.(AlgorithmSigner)
+	if !ok {
+		return algorithmSignerWrapper{signer}, keyFormat
+	}
+
+	extPayload, ok := extensions["server-sig-algs"]
+	if !ok {
+		// If there is no "server-sig-algs" extension, fall back to the key
+		// format algorithm.
+		return as, keyFormat
+	}
+
+	// The server-sig-algs extension only carries underlying signature
+	// algorithm, but we are trying to select a protocol-level public key
+	// algorithm, which might be a certificate type. Extend the list of server
+	// supported algorithms to include the corresponding certificate algorithms.
+	serverAlgos := strings.Split(string(extPayload), ",")
+	for _, algo := range serverAlgos {
+		if certAlgo, ok := certificateAlgo(algo); ok {
+			serverAlgos = append(serverAlgos, certAlgo)
+		}
+	}
+
+	keyAlgos := algorithmsForKeyFormat(keyFormat)
+	algo, err := findCommon("public key signature algorithm", keyAlgos, serverAlgos)
+	if err != nil {
+		// If there is no overlap, try the key anyway with the key format
+		// algorithm, to support servers that fail to list all supported
+		// algorithms.
+		return as, keyFormat
+	}
+	return as, algo
+}
+
+func (cb publicKeyCallback) auth(session []byte, user string, c packetConn, rand io.Reader, extensions map[string][]byte) (authResult, []string, error) {
 	// Authentication is performed by sending an enquiry to test if a key is
 	// acceptable to the remote. If the key is acceptable, the client will
 	// attempt to authenticate with the valid key.  If not the client will repeat
@@ -201,7 +268,10 @@ func (cb publicKeyCallback) auth(session []byte, user string, c packetConn, rand
 	}
 	var methods []string
 	for _, signer := range signers {
-		ok, err := validateKey(signer.PublicKey(), user, c)
+		pub := signer.PublicKey()
+		as, algo := pickSignatureAlgorithm(signer, extensions)
+
+		ok, err := validateKey(pub, algo, user, c)
 		if err != nil {
 			return authFailure, nil, err
 		}
@@ -209,13 +279,13 @@ func (cb publicKeyCallback) auth(session []byte, user string, c packetConn, rand
 			continue
 		}
 
-		pub := signer.PublicKey()
 		pubKey := pub.Marshal()
-		sign, err := signer.Sign(rand, buildDataSignedForAuth(session, userAuthRequestMsg{
+		data := buildDataSignedForAuth(session, userAuthRequestMsg{
 			User:    user,
 			Service: serviceSSH,
 			Method:  cb.method(),
-		}, []byte(pub.Type()), pubKey))
+		}, algo, pubKey)
+		sign, err := as.SignWithAlgorithm(rand, data, underlyingAlgo(algo))
 		if err != nil {
 			return authFailure, nil, err
 		}
@@ -229,7 +299,7 @@ func (cb publicKeyCallback) auth(session []byte, user string, c packetConn, rand
 			Service:  serviceSSH,
 			Method:   cb.method(),
 			HasSig:   true,
-			Algoname: pub.Type(),
+			Algoname: algo,
 			PubKey:   pubKey,
 			Sig:      sig,
 		}
@@ -266,26 +336,25 @@ func containsMethod(methods []string, method string) bool {
 }
 
 // validateKey validates the key provided is acceptable to the server.
-func validateKey(key PublicKey, user string, c packetConn) (bool, error) {
+func validateKey(key PublicKey, algo string, user string, c packetConn) (bool, error) {
 	pubKey := key.Marshal()
 	msg := publickeyAuthMsg{
 		User:     user,
 		Service:  serviceSSH,
 		Method:   "publickey",
 		HasSig:   false,
-		Algoname: key.Type(),
+		Algoname: algo,
 		PubKey:   pubKey,
 	}
 	if err := c.writePacket(Marshal(&msg)); err != nil {
 		return false, err
 	}
 
-	return confirmKeyAck(key, c)
+	return confirmKeyAck(key, algo, c)
 }
 
-func confirmKeyAck(key PublicKey, c packetConn) (bool, error) {
+func confirmKeyAck(key PublicKey, algo string, c packetConn) (bool, error) {
 	pubKey := key.Marshal()
-	algoname := key.Type()
 
 	for {
 		packet, err := c.readPacket()
@@ -302,14 +371,14 @@ func confirmKeyAck(key PublicKey, c packetConn) (bool, error) {
 			if err := Unmarshal(packet, &msg); err != nil {
 				return false, err
 			}
-			if msg.Algo != algoname || !bytes.Equal(msg.PubKey, pubKey) {
+			if msg.Algo != algo || !bytes.Equal(msg.PubKey, pubKey) {
 				return false, nil
 			}
 			return true, nil
 		case msgUserAuthFailure:
 			return false, nil
 		default:
-			return false, unexpectedMessageError(msgUserAuthSuccess, packet[0])
+			return false, unexpectedMessageError(msgUserAuthPubKeyOk, packet[0])
 		}
 	}
 }
@@ -330,6 +399,7 @@ func PublicKeysCallback(getSigners func() (signers []Signer, err error)) AuthMet
 // along with a list of remaining authentication methods to try next and
 // an error if an unexpected response was received.
 func handleAuthResponse(c packetConn) (authResult, []string, error) {
+	gotMsgExtInfo := false
 	for {
 		packet, err := c.readPacket()
 		if err != nil {
@@ -341,6 +411,12 @@ func handleAuthResponse(c packetConn) (authResult, []string, error) {
 			if err := handleBannerResponse(c, packet); err != nil {
 				return authFailure, nil, err
 			}
+		case msgExtInfo:
+			// Ignore post-authentication RFC 8308 extensions, once.
+			if gotMsgExtInfo {
+				return authFailure, nil, unexpectedMessageError(msgUserAuthSuccess, packet[0])
+			}
+			gotMsgExtInfo = true
 		case msgUserAuthFailure:
 			var msg userAuthFailureMsg
 			if err := Unmarshal(packet, &msg); err != nil {
@@ -380,10 +456,10 @@ func handleBannerResponse(c packetConn, packet []byte) error {
 // disabling echoing (e.g. for passwords), and return all the answers.
 // Challenge may be called multiple times in a single session. After
 // successful authentication, the server may send a challenge with no
-// questions, for which the user and instruction messages should be
+// questions, for which the name and instruction messages should be
 // printed.  RFC 4256 section 3.3 details how the UI should behave for
 // both CLI and GUI environments.
-type KeyboardInteractiveChallenge func(user, instruction string, questions []string, echos []bool) (answers []string, err error)
+type KeyboardInteractiveChallenge func(name, instruction string, questions []string, echos []bool) (answers []string, err error)
 
 // KeyboardInteractive returns an AuthMethod using a prompt/response
 // sequence controlled by the server.
@@ -395,7 +471,7 @@ func (cb KeyboardInteractiveChallenge) method() string {
 	return "keyboard-interactive"
 }
 
-func (cb KeyboardInteractiveChallenge) auth(session []byte, user string, c packetConn, rand io.Reader) (authResult, []string, error) {
+func (cb KeyboardInteractiveChallenge) auth(session []byte, user string, c packetConn, rand io.Reader, _ map[string][]byte) (authResult, []string, error) {
 	type initiateMsg struct {
 		User       string `sshtype:"50"`
 		Service    string
@@ -412,6 +488,7 @@ func (cb KeyboardInteractiveChallenge) auth(session []byte, user string, c packe
 		return authFailure, nil, err
 	}
 
+	gotMsgExtInfo := false
 	for {
 		packet, err := c.readPacket()
 		if err != nil {
@@ -425,6 +502,13 @@ func (cb KeyboardInteractiveChallenge) auth(session []byte, user string, c packe
 				return authFailure, nil, err
 			}
 			continue
+		case msgExtInfo:
+			// Ignore post-authentication RFC 8308 extensions, once.
+			if gotMsgExtInfo {
+				return authFailure, nil, unexpectedMessageError(msgUserAuthInfoRequest, packet[0])
+			}
+			gotMsgExtInfo = true
+			continue
 		case msgUserAuthInfoRequest:
 			// OK
 		case msgUserAuthFailure:
@@ -465,7 +549,7 @@ func (cb KeyboardInteractiveChallenge) auth(session []byte, user string, c packe
 			return authFailure, nil, errors.New("ssh: extra data following keyboard-interactive pairs")
 		}
 
-		answers, err := cb(msg.User, msg.Instruction, prompts, echos)
+		answers, err := cb(msg.Name, msg.Instruction, prompts, echos)
 		if err != nil {
 			return authFailure, nil, err
 		}
@@ -497,9 +581,9 @@ type retryableAuthMethod struct {
 	maxTries   int
 }
 
-func (r *retryableAuthMethod) auth(session []byte, user string, c packetConn, rand io.Reader) (ok authResult, methods []string, err error) {
+func (r *retryableAuthMethod) auth(session []byte, user string, c packetConn, rand io.Reader, extensions map[string][]byte) (ok authResult, methods []string, err error) {
 	for i := 0; r.maxTries <= 0 || i < r.maxTries; i++ {
-		ok, methods, err = r.authMethod.auth(session, user, c, rand)
+		ok, methods, err = r.authMethod.auth(session, user, c, rand, extensions)
 		if ok != authFailure || err != nil { // either success, partial success or error terminate
 			return ok, methods, err
 		}
@@ -542,7 +626,7 @@ type gssAPIWithMICCallback struct {
 	target       string
 }
 
-func (g *gssAPIWithMICCallback) auth(session []byte, user string, c packetConn, rand io.Reader) (authResult, []string, error) {
+func (g *gssAPIWithMICCallback) auth(session []byte, user string, c packetConn, rand io.Reader, _ map[string][]byte) (authResult, []string, error) {
 	m := &userAuthRequestMsg{
 		User:    user,
 		Service: serviceSSH,

vendor/golang.org/x/crypto/ssh/common.go

@@ -44,11 +44,11 @@ var preferredCiphers = []string{
 // supportedKexAlgos specifies the supported key-exchange algorithms in
 // preference order.
 var supportedKexAlgos = []string{
-	kexAlgoCurve25519SHA256,
+	kexAlgoCurve25519SHA256, kexAlgoCurve25519SHA256LibSSH,
 	// P384 and P521 are not constant-time yet, but since we don't
 	// reuse ephemeral keys, using them for ECDH should be OK.
 	kexAlgoECDH256, kexAlgoECDH384, kexAlgoECDH521,
-	kexAlgoDH14SHA1, kexAlgoDH1SHA1,
+	kexAlgoDH14SHA256, kexAlgoDH14SHA1, kexAlgoDH1SHA1,
 }
 
 // serverForbiddenKexAlgos contains key exchange algorithms, that are forbidden
@@ -61,18 +61,20 @@ var serverForbiddenKexAlgos = map[string]struct{}{
 // preferredKexAlgos specifies the default preference for key-exchange algorithms
 // in preference order.
 var preferredKexAlgos = []string{
-	kexAlgoCurve25519SHA256,
+	kexAlgoCurve25519SHA256, kexAlgoCurve25519SHA256LibSSH,
 	kexAlgoECDH256, kexAlgoECDH384, kexAlgoECDH521,
-	kexAlgoDH14SHA1,
+	kexAlgoDH14SHA256, kexAlgoDH14SHA1,
 }
 
 // supportedHostKeyAlgos specifies the supported host-key algorithms (i.e. methods
 // of authenticating servers) in preference order.
 var supportedHostKeyAlgos = []string{
+	CertAlgoRSASHA512v01, CertAlgoRSASHA256v01,
 	CertAlgoRSAv01, CertAlgoDSAv01, CertAlgoECDSA256v01,
 	CertAlgoECDSA384v01, CertAlgoECDSA521v01, CertAlgoED25519v01,
 
 	KeyAlgoECDSA256, KeyAlgoECDSA384, KeyAlgoECDSA521,
+	KeyAlgoRSASHA512, KeyAlgoRSASHA256,
 	KeyAlgoRSA, KeyAlgoDSA,
 
 	KeyAlgoED25519,
@@ -87,19 +89,33 @@ var supportedMACs = []string{
 
 var supportedCompressions = []string{compressionNone}
 
-// hashFuncs keeps the mapping of supported algorithms to their respective
-// hashes needed for signature verification.
+// hashFuncs keeps the mapping of supported signature algorithms to their
+// respective hashes needed for signing and verification.
 var hashFuncs = map[string]crypto.Hash{
-	KeyAlgoRSA:          crypto.SHA1,
-	KeyAlgoDSA:          crypto.SHA1,
-	KeyAlgoECDSA256:     crypto.SHA256,
-	KeyAlgoECDSA384:     crypto.SHA384,
-	KeyAlgoECDSA521:     crypto.SHA512,
-	CertAlgoRSAv01:      crypto.SHA1,
-	CertAlgoDSAv01:      crypto.SHA1,
-	CertAlgoECDSA256v01: crypto.SHA256,
-	CertAlgoECDSA384v01: crypto.SHA384,
-	CertAlgoECDSA521v01: crypto.SHA512,
+	KeyAlgoRSA:       crypto.SHA1,
+	KeyAlgoRSASHA256: crypto.SHA256,
+	KeyAlgoRSASHA512: crypto.SHA512,
+	KeyAlgoDSA:       crypto.SHA1,
+	KeyAlgoECDSA256:  crypto.SHA256,
+	KeyAlgoECDSA384:  crypto.SHA384,
+	KeyAlgoECDSA521:  crypto.SHA512,
+	// KeyAlgoED25519 doesn't pre-hash.
+	KeyAlgoSKECDSA256: crypto.SHA256,
+	KeyAlgoSKED25519:  crypto.SHA256,
+}
+
+// algorithmsForKeyFormat returns the supported signature algorithms for a given
+// public key format (PublicKey.Type), in order of preference. See RFC 8332,
+// Section 2. See also the note in sendKexInit on backwards compatibility.
+func algorithmsForKeyFormat(keyFormat string) []string {
+	switch keyFormat {
+	case KeyAlgoRSA:
+		return []string{KeyAlgoRSASHA256, KeyAlgoRSASHA512, KeyAlgoRSA}
+	case CertAlgoRSAv01:
+		return []string{CertAlgoRSASHA256v01, CertAlgoRSASHA512v01, CertAlgoRSAv01}
+	default:
+		return []string{keyFormat}
+	}
 }
 
 // unexpectedMessageError results when the SSH message that we received didn't
@@ -146,6 +162,11 @@ func (a *directionAlgorithms) rekeyBytes() int64 {
 	return 1 << 30
 }
 
+var aeadCiphers = map[string]bool{
+	gcmCipherID:        true,
+	chacha20Poly1305ID: true,
+}
+
 type algorithms struct {
 	kex     string
 	hostKey string
@@ -181,14 +202,18 @@ func findAgreedAlgorithms(isClient bool, clientKexInit, serverKexInit *kexInitMs
 		return
 	}
 
-	ctos.MAC, err = findCommon("client to server MAC", clientKexInit.MACsClientServer, serverKexInit.MACsClientServer)
-	if err != nil {
-		return
+	if !aeadCiphers[ctos.Cipher] {
+		ctos.MAC, err = findCommon("client to server MAC", clientKexInit.MACsClientServer, serverKexInit.MACsClientServer)
+		if err != nil {
+			return
+		}
 	}
 
-	stoc.MAC, err = findCommon("server to client MAC", clientKexInit.MACsServerClient, serverKexInit.MACsServerClient)
-	if err != nil {
-		return
+	if !aeadCiphers[stoc.Cipher] {
+		stoc.MAC, err = findCommon("server to client MAC", clientKexInit.MACsServerClient, serverKexInit.MACsServerClient)
+		if err != nil {
+			return
+		}
 	}
 
 	ctos.Compression, err = findCommon("client to server compression", clientKexInit.CompressionClientServer, serverKexInit.CompressionClientServer)
@@ -272,8 +297,9 @@ func (c *Config) SetDefaults() {
 }
 
 // buildDataSignedForAuth returns the data that is signed in order to prove
-// possession of a private key. See RFC 4252, section 7.
-func buildDataSignedForAuth(sessionID []byte, req userAuthRequestMsg, algo, pubKey []byte) []byte {
+// possession of a private key. See RFC 4252, section 7. algo is the advertised
+// algorithm, and may be a certificate type.
+func buildDataSignedForAuth(sessionID []byte, req userAuthRequestMsg, algo string, pubKey []byte) []byte {
 	data := struct {
 		Session []byte
 		Type    byte
@@ -281,7 +307,7 @@ func buildDataSignedForAuth(sessionID []byte, req userAuthRequestMsg, algo, pubK
 		Service string
 		Method  string
 		Sign    bool
-		Algo    []byte
+		Algo    string
 		PubKey  []byte
 	}{
 		sessionID,

vendor/golang.org/x/crypto/ssh/doc.go

@@ -12,8 +12,9 @@ the multiplexed nature of SSH is exposed to users that wish to support
 others.
 
 References:
-  [PROTOCOL.certkeys]: http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/PROTOCOL.certkeys?rev=HEAD
-  [SSH-PARAMETERS]:    http://www.iana.org/assignments/ssh-parameters/ssh-parameters.xml#ssh-parameters-1
+
+	[PROTOCOL.certkeys]: http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/PROTOCOL.certkeys?rev=HEAD
+	[SSH-PARAMETERS]:    http://www.iana.org/assignments/ssh-parameters/ssh-parameters.xml#ssh-parameters-1
 
 This package does not fall under the stability promise of the Go language itself,
 so its API may be changed when pressing needs arise.

vendor/golang.org/x/crypto/ssh/handshake.go

@@ -455,14 +455,38 @@ func (t *handshakeTransport) sendKexInit() error {
 	}
 	io.ReadFull(rand.Reader, msg.Cookie[:])
 
-	if len(t.hostKeys) > 0 {
+	isServer := len(t.hostKeys) > 0
+	if isServer {
 		for _, k := range t.hostKeys {
-			msg.ServerHostKeyAlgos = append(
-				msg.ServerHostKeyAlgos, k.PublicKey().Type())
+			// If k is an AlgorithmSigner, presume it supports all signature algorithms
+			// associated with the key format. (Ideally AlgorithmSigner would have a
+			// method to advertise supported algorithms, but it doesn't. This means that
+			// adding support for a new algorithm is a breaking change, as we will
+			// immediately negotiate it even if existing implementations don't support
+			// it. If that ever happens, we'll have to figure something out.)
+			// If k is not an AlgorithmSigner, we can only assume it only supports the
+			// algorithms that matches the key format. (This means that Sign can't pick
+			// a different default.)
+			keyFormat := k.PublicKey().Type()
+			if _, ok := k.(AlgorithmSigner); ok {
+				msg.ServerHostKeyAlgos = append(msg.ServerHostKeyAlgos, algorithmsForKeyFormat(keyFormat)...)
+			} else {
+				msg.ServerHostKeyAlgos = append(msg.ServerHostKeyAlgos, keyFormat)
+			}
 		}
 	} else {
 		msg.ServerHostKeyAlgos = t.hostKeyAlgorithms
+
+		// As a client we opt in to receiving SSH_MSG_EXT_INFO so we know what
+		// algorithms the server supports for public key authentication. See RFC
+		// 8308, Section 2.1.
+		if firstKeyExchange := t.sessionID == nil; firstKeyExchange {
+			msg.KexAlgos = make([]string, 0, len(t.config.KeyExchanges)+1)
+			msg.KexAlgos = append(msg.KexAlgos, t.config.KeyExchanges...)
+			msg.KexAlgos = append(msg.KexAlgos, "ext-info-c")
+		}
 	}
+
 	packet := Marshal(msg)
 
 	// writePacket destroys the contents, so save a copy.
@@ -582,9 +606,9 @@ func (t *handshakeTransport) enterKeyExchange(otherInitPacket []byte) error {
 
 	var result *kexResult
 	if len(t.hostKeys) > 0 {
-		result, err = t.server(kex, t.algorithms, &magics)
+		result, err = t.server(kex, &magics)
 	} else {
-		result, err = t.client(kex, t.algorithms, &magics)
+		result, err = t.client(kex, &magics)
 	}
 
 	if err != nil {
@@ -611,19 +635,52 @@ func (t *handshakeTransport) enterKeyExchange(otherInitPacket []byte) error {
 	return nil
 }
 
-func (t *handshakeTransport) server(kex kexAlgorithm, algs *algorithms, magics *handshakeMagics) (*kexResult, error) {
-	var hostKey Signer
-	for _, k := range t.hostKeys {
-		if algs.hostKey == k.PublicKey().Type() {
-			hostKey = k
+// algorithmSignerWrapper is an AlgorithmSigner that only supports the default
+// key format algorithm.
+//
+// This is technically a violation of the AlgorithmSigner interface, but it
+// should be unreachable given where we use this. Anyway, at least it returns an
+// error instead of panicing or producing an incorrect signature.
+type algorithmSignerWrapper struct {
+	Signer
+}
+
+func (a algorithmSignerWrapper) SignWithAlgorithm(rand io.Reader, data []byte, algorithm string) (*Signature, error) {
+	if algorithm != underlyingAlgo(a.PublicKey().Type()) {
+		return nil, errors.New("ssh: internal error: algorithmSignerWrapper invoked with non-default algorithm")
+	}
+	return a.Sign(rand, data)
+}
+
+func pickHostKey(hostKeys []Signer, algo string) AlgorithmSigner {
+	for _, k := range hostKeys {
+		if algo == k.PublicKey().Type() {
+			return algorithmSignerWrapper{k}
+		}
+		k, ok := k.(AlgorithmSigner)
+		if !ok {
+			continue
+		}
+		for _, a := range algorithmsForKeyFormat(k.PublicKey().Type()) {
+			if algo == a {
+				return k
+			}
 		}
 	}
+	return nil
+}
 
-	r, err := kex.Server(t.conn, t.config.Rand, magics, hostKey)
+func (t *handshakeTransport) server(kex kexAlgorithm, magics *handshakeMagics) (*kexResult, error) {
+	hostKey := pickHostKey(t.hostKeys, t.algorithms.hostKey)
+	if hostKey == nil {
+		return nil, errors.New("ssh: internal error: negotiated unsupported signature type")
+	}
+
+	r, err := kex.Server(t.conn, t.config.Rand, magics, hostKey, t.algorithms.hostKey)
 	return r, err
 }
 
-func (t *handshakeTransport) client(kex kexAlgorithm, algs *algorithms, magics *handshakeMagics) (*kexResult, error) {
+func (t *handshakeTransport) client(kex kexAlgorithm, magics *handshakeMagics) (*kexResult, error) {
 	result, err := kex.Client(t.conn, t.config.Rand, magics)
 	if err != nil {
 		return nil, err
@@ -634,7 +691,7 @@ func (t *handshakeTransport) client(kex kexAlgorithm, algs *algorithms, magics *
 		return nil, err
 	}
 
-	if err := verifyHostKeySignature(hostKey, result); err != nil {
+	if err := verifyHostKeySignature(hostKey, t.algorithms.hostKey, result); err != nil {
 		return nil, err
 	}
 

vendor/golang.org/x/crypto/ssh/kex.go

@@ -20,12 +20,14 @@ import (
 )
 
 const (
-	kexAlgoDH1SHA1          = "diffie-hellman-group1-sha1"
-	kexAlgoDH14SHA1         = "diffie-hellman-group14-sha1"
-	kexAlgoECDH256          = "ecdh-sha2-nistp256"
-	kexAlgoECDH384          = "ecdh-sha2-nistp384"
-	kexAlgoECDH521          = "ecdh-sha2-nistp521"
-	kexAlgoCurve25519SHA256 = "curve25519-sha256@libssh.org"
+	kexAlgoDH1SHA1                = "diffie-hellman-group1-sha1"
+	kexAlgoDH14SHA1               = "diffie-hellman-group14-sha1"
+	kexAlgoDH14SHA256             = "diffie-hellman-group14-sha256"
+	kexAlgoECDH256                = "ecdh-sha2-nistp256"
+	kexAlgoECDH384                = "ecdh-sha2-nistp384"
+	kexAlgoECDH521                = "ecdh-sha2-nistp521"
+	kexAlgoCurve25519SHA256LibSSH = "curve25519-sha256@libssh.org"
+	kexAlgoCurve25519SHA256       = "curve25519-sha256"
 
 	// For the following kex only the client half contains a production
 	// ready implementation. The server half only consists of a minimal
@@ -75,8 +77,9 @@ func (m *handshakeMagics) write(w io.Writer) {
 // kexAlgorithm abstracts different key exchange algorithms.
 type kexAlgorithm interface {
 	// Server runs server-side key agreement, signing the result
-	// with a hostkey.
-	Server(p packetConn, rand io.Reader, magics *handshakeMagics, s Signer) (*kexResult, error)
+	// with a hostkey. algo is the negotiated algorithm, and may
+	// be a certificate type.
+	Server(p packetConn, rand io.Reader, magics *handshakeMagics, s AlgorithmSigner, algo string) (*kexResult, error)
 
 	// Client runs the client-side key agreement. Caller is
 	// responsible for verifying the host key signature.
@@ -86,6 +89,7 @@ type kexAlgorithm interface {
 // dhGroup is a multiplicative group suitable for implementing Diffie-Hellman key agreement.
 type dhGroup struct {
 	g, p, pMinus1 *big.Int
+	hashFunc      crypto.Hash
 }
 
 func (group *dhGroup) diffieHellman(theirPublic, myPrivate *big.Int) (*big.Int, error) {
@@ -96,8 +100,6 @@ func (group *dhGroup) diffieHellman(theirPublic, myPrivate *big.Int) (*big.Int,
 }
 
 func (group *dhGroup) Client(c packetConn, randSource io.Reader, magics *handshakeMagics) (*kexResult, error) {
-	hashFunc := crypto.SHA1
-
 	var x *big.Int
 	for {
 		var err error
@@ -132,7 +134,7 @@ func (group *dhGroup) Client(c packetConn, randSource io.Reader, magics *handsha
 		return nil, err
 	}
 
-	h := hashFunc.New()
+	h := group.hashFunc.New()
 	magics.write(h)
 	writeString(h, kexDHReply.HostKey)
 	writeInt(h, X)
@@ -146,12 +148,11 @@ func (group *dhGroup) Client(c packetConn, randSource io.Reader, magics *handsha
 		K:         K,
 		HostKey:   kexDHReply.HostKey,
 		Signature: kexDHReply.Signature,
-		Hash:      crypto.SHA1,
+		Hash:      group.hashFunc,
 	}, nil
 }
 
-func (group *dhGroup) Server(c packetConn, randSource io.Reader, magics *handshakeMagics, priv Signer) (result *kexResult, err error) {
-	hashFunc := crypto.SHA1
+func (group *dhGroup) Server(c packetConn, randSource io.Reader, magics *handshakeMagics, priv AlgorithmSigner, algo string) (result *kexResult, err error) {
 	packet, err := c.readPacket()
 	if err != nil {
 		return
@@ -179,7 +180,7 @@ func (group *dhGroup) Server(c packetConn, randSource io.Reader, magics *handsha
 
 	hostKeyBytes := priv.PublicKey().Marshal()
 
-	h := hashFunc.New()
+	h := group.hashFunc.New()
 	magics.write(h)
 	writeString(h, hostKeyBytes)
 	writeInt(h, kexDHInit.X)
@@ -193,7 +194,7 @@ func (group *dhGroup) Server(c packetConn, randSource io.Reader, magics *handsha
 
 	// H is already a hash, but the hostkey signing will apply its
 	// own key-specific hash algorithm.
-	sig, err := signAndMarshal(priv, randSource, H)
+	sig, err := signAndMarshal(priv, randSource, H, algo)
 	if err != nil {
 		return nil, err
 	}
@@ -211,7 +212,7 @@ func (group *dhGroup) Server(c packetConn, randSource io.Reader, magics *handsha
 		K:         K,
 		HostKey:   hostKeyBytes,
 		Signature: sig,
-		Hash:      crypto.SHA1,
+		Hash:      group.hashFunc,
 	}, err
 }
 
@@ -314,7 +315,7 @@ func validateECPublicKey(curve elliptic.Curve, x, y *big.Int) bool {
 	return true
 }
 
-func (kex *ecdh) Server(c packetConn, rand io.Reader, magics *handshakeMagics, priv Signer) (result *kexResult, err error) {
+func (kex *ecdh) Server(c packetConn, rand io.Reader, magics *handshakeMagics, priv AlgorithmSigner, algo string) (result *kexResult, err error) {
 	packet, err := c.readPacket()
 	if err != nil {
 		return nil, err
@@ -359,7 +360,7 @@ func (kex *ecdh) Server(c packetConn, rand io.Reader, magics *handshakeMagics, p
 
 	// H is already a hash, but the hostkey signing will apply its
 	// own key-specific hash algorithm.
-	sig, err := signAndMarshal(priv, rand, H)
+	sig, err := signAndMarshal(priv, rand, H, algo)
 	if err != nil {
 		return nil, err
 	}
@@ -384,39 +385,62 @@ func (kex *ecdh) Server(c packetConn, rand io.Reader, magics *handshakeMagics, p
 	}, nil
 }
 
+// ecHash returns the hash to match the given elliptic curve, see RFC
+// 5656, section 6.2.1
+func ecHash(curve elliptic.Curve) crypto.Hash {
+	bitSize := curve.Params().BitSize
+	switch {
+	case bitSize <= 256:
+		return crypto.SHA256
+	case bitSize <= 384:
+		return crypto.SHA384
+	}
+	return crypto.SHA512
+}
+
 var kexAlgoMap = map[string]kexAlgorithm{}
 
 func init() {
-	// This is the group called diffie-hellman-group1-sha1 in RFC
-	// 4253 and Oakley Group 2 in RFC 2409.
+	// This is the group called diffie-hellman-group1-sha1 in
+	// RFC 4253 and Oakley Group 2 in RFC 2409.
 	p, _ := new(big.Int).SetString("FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF", 16)
 	kexAlgoMap[kexAlgoDH1SHA1] = &dhGroup{
+		g:        new(big.Int).SetInt64(2),
+		p:        p,
+		pMinus1:  new(big.Int).Sub(p, bigOne),
+		hashFunc: crypto.SHA1,
+	}
+
+	// This are the groups called diffie-hellman-group14-sha1 and
+	// diffie-hellman-group14-sha256 in RFC 4253 and RFC 8268,
+	// and Oakley Group 14 in RFC 3526.
+	p, _ = new(big.Int).SetString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
+	group14 := &dhGroup{
 		g:       new(big.Int).SetInt64(2),
 		p:       p,
 		pMinus1: new(big.Int).Sub(p, bigOne),
 	}
 
-	// This is the group called diffie-hellman-group14-sha1 in RFC
-	// 4253 and Oakley Group 14 in RFC 3526.
-	p, _ = new(big.Int).SetString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
-
 	kexAlgoMap[kexAlgoDH14SHA1] = &dhGroup{
-		g:       new(big.Int).SetInt64(2),
-		p:       p,
-		pMinus1: new(big.Int).Sub(p, bigOne),
+		g: group14.g, p: group14.p, pMinus1: group14.pMinus1,
+		hashFunc: crypto.SHA1,
+	}
+	kexAlgoMap[kexAlgoDH14SHA256] = &dhGroup{
+		g: group14.g, p: group14.p, pMinus1: group14.pMinus1,
+		hashFunc: crypto.SHA256,
 	}
 
 	kexAlgoMap[kexAlgoECDH521] = &ecdh{elliptic.P521()}
 	kexAlgoMap[kexAlgoECDH384] = &ecdh{elliptic.P384()}
 	kexAlgoMap[kexAlgoECDH256] = &ecdh{elliptic.P256()}
 	kexAlgoMap[kexAlgoCurve25519SHA256] = &curve25519sha256{}
+	kexAlgoMap[kexAlgoCurve25519SHA256LibSSH] = &curve25519sha256{}
 	kexAlgoMap[kexAlgoDHGEXSHA1] = &dhGEXSHA{hashFunc: crypto.SHA1}
 	kexAlgoMap[kexAlgoDHGEXSHA256] = &dhGEXSHA{hashFunc: crypto.SHA256}
 }
 
-// curve25519sha256 implements the curve25519-sha256@libssh.org key
-// agreement protocol, as described in
-// https://git.libssh.org/projects/libssh.git/tree/doc/curve25519-sha256@libssh.org.txt
+// curve25519sha256 implements the curve25519-sha256 (formerly known as
+// curve25519-sha256@libssh.org) key exchange method, as described in RFC 8731.
 type curve25519sha256 struct{}
 
 type curve25519KeyPair struct {
@@ -486,7 +510,7 @@ func (kex *curve25519sha256) Client(c packetConn, rand io.Reader, magics *handsh
 	}, nil
 }
 
-func (kex *curve25519sha256) Server(c packetConn, rand io.Reader, magics *handshakeMagics, priv Signer) (result *kexResult, err error) {
+func (kex *curve25519sha256) Server(c packetConn, rand io.Reader, magics *handshakeMagics, priv AlgorithmSigner, algo string) (result *kexResult, err error) {
 	packet, err := c.readPacket()
 	if err != nil {
 		return
@@ -527,7 +551,7 @@ func (kex *curve25519sha256) Server(c packetConn, rand io.Reader, magics *handsh
 
 	H := h.Sum(nil)
 
-	sig, err := signAndMarshal(priv, rand, H)
+	sig, err := signAndMarshal(priv, rand, H, algo)
 	if err != nil {
 		return nil, err
 	}
@@ -553,7 +577,6 @@ func (kex *curve25519sha256) Server(c packetConn, rand io.Reader, magics *handsh
 // diffie-hellman-group-exchange-sha256 key agreement protocols,
 // as described in RFC 4419
 type dhGEXSHA struct {
-	g, p     *big.Int
 	hashFunc crypto.Hash
 }
 
@@ -563,14 +586,7 @@ const (
 	dhGroupExchangeMaximumBits   = 8192
 )
 
-func (gex *dhGEXSHA) diffieHellman(theirPublic, myPrivate *big.Int) (*big.Int, error) {
-	if theirPublic.Sign() <= 0 || theirPublic.Cmp(gex.p) >= 0 {
-		return nil, fmt.Errorf("ssh: DH parameter out of bounds")
-	}
-	return new(big.Int).Exp(theirPublic, myPrivate, gex.p), nil
-}
-
-func (gex dhGEXSHA) Client(c packetConn, randSource io.Reader, magics *handshakeMagics) (*kexResult, error) {
+func (gex *dhGEXSHA) Client(c packetConn, randSource io.Reader, magics *handshakeMagics) (*kexResult, error) {
 	// Send GexRequest
 	kexDHGexRequest := kexDHGexRequestMsg{
 		MinBits:      dhGroupExchangeMinimumBits,
@@ -587,35 +603,29 @@ func (gex dhGEXSHA) Client(c packetConn, randSource io.Reader, magics *handshake
 		return nil, err
 	}
 
-	var kexDHGexGroup kexDHGexGroupMsg
-	if err = Unmarshal(packet, &kexDHGexGroup); err != nil {
+	var msg kexDHGexGroupMsg
+	if err = Unmarshal(packet, &msg); err != nil {
 		return nil, err
 	}
 
 	// reject if p's bit length < dhGroupExchangeMinimumBits or > dhGroupExchangeMaximumBits
-	if kexDHGexGroup.P.BitLen() < dhGroupExchangeMinimumBits || kexDHGexGroup.P.BitLen() > dhGroupExchangeMaximumBits {
-		return nil, fmt.Errorf("ssh: server-generated gex p is out of range (%d bits)", kexDHGexGroup.P.BitLen())
+	if msg.P.BitLen() < dhGroupExchangeMinimumBits || msg.P.BitLen() > dhGroupExchangeMaximumBits {
+		return nil, fmt.Errorf("ssh: server-generated gex p is out of range (%d bits)", msg.P.BitLen())
 	}
 
-	gex.p = kexDHGexGroup.P
-	gex.g = kexDHGexGroup.G
-
-	// Check if g is safe by verifing that g > 1 and g < p - 1
-	one := big.NewInt(1)
-	var pMinusOne = &big.Int{}
-	pMinusOne.Sub(gex.p, one)
-	if gex.g.Cmp(one) != 1 && gex.g.Cmp(pMinusOne) != -1 {
+	// Check if g is safe by verifying that 1 < g < p-1
+	pMinusOne := new(big.Int).Sub(msg.P, bigOne)
+	if msg.G.Cmp(bigOne) <= 0 || msg.G.Cmp(pMinusOne) >= 0 {
 		return nil, fmt.Errorf("ssh: server provided gex g is not safe")
 	}
 
 	// Send GexInit
-	var pHalf = &big.Int{}
-	pHalf.Rsh(gex.p, 1)
+	pHalf := new(big.Int).Rsh(msg.P, 1)
 	x, err := rand.Int(randSource, pHalf)
 	if err != nil {
 		return nil, err
 	}
-	X := new(big.Int).Exp(gex.g, x, gex.p)
+	X := new(big.Int).Exp(msg.G, x, msg.P)
 	kexDHGexInit := kexDHGexInitMsg{
 		X: X,
 	}
@@ -634,13 +644,13 @@ func (gex dhGEXSHA) Client(c packetConn, randSource io.Reader, magics *handshake
 		return nil, err
 	}
 
-	kInt, err := gex.diffieHellman(kexDHGexReply.Y, x)
-	if err != nil {
-		return nil, err
+	if kexDHGexReply.Y.Cmp(bigOne) <= 0 || kexDHGexReply.Y.Cmp(pMinusOne) >= 0 {
+		return nil, errors.New("ssh: DH parameter out of bounds")
 	}
+	kInt := new(big.Int).Exp(kexDHGexReply.Y, x, msg.P)
 
-	// Check if k is safe by verifing that k > 1 and k < p - 1
-	if kInt.Cmp(one) != 1 && kInt.Cmp(pMinusOne) != -1 {
+	// Check if k is safe by verifying that k > 1 and k < p - 1
+	if kInt.Cmp(bigOne) <= 0 || kInt.Cmp(pMinusOne) >= 0 {
 		return nil, fmt.Errorf("ssh: derived k is not safe")
 	}
 
@@ -650,8 +660,8 @@ func (gex dhGEXSHA) Client(c packetConn, randSource io.Reader, magics *handshake
 	binary.Write(h, binary.BigEndian, uint32(dhGroupExchangeMinimumBits))
 	binary.Write(h, binary.BigEndian, uint32(dhGroupExchangePreferredBits))
 	binary.Write(h, binary.BigEndian, uint32(dhGroupExchangeMaximumBits))
-	writeInt(h, gex.p)
-	writeInt(h, gex.g)
+	writeInt(h, msg.P)
+	writeInt(h, msg.G)
 	writeInt(h, X)
 	writeInt(h, kexDHGexReply.Y)
 	K := make([]byte, intLength(kInt))
@@ -670,7 +680,7 @@ func (gex dhGEXSHA) Client(c packetConn, randSource io.Reader, magics *handshake
 // Server half implementation of the Diffie Hellman Key Exchange with SHA1 and SHA256.
 //
 // This is a minimal implementation to satisfy the automated tests.
-func (gex dhGEXSHA) Server(c packetConn, randSource io.Reader, magics *handshakeMagics, priv Signer) (result *kexResult, err error) {
+func (gex dhGEXSHA) Server(c packetConn, randSource io.Reader, magics *handshakeMagics, priv AlgorithmSigner, algo string) (result *kexResult, err error) {
 	// Receive GexRequest
 	packet, err := c.readPacket()
 	if err != nil {
@@ -681,35 +691,17 @@ func (gex dhGEXSHA) Server(c packetConn, randSource io.Reader, magics *handshake
 		return
 	}
 
-	// smoosh the user's preferred size into our own limits
-	if kexDHGexRequest.PreferedBits > dhGroupExchangeMaximumBits {
-		kexDHGexRequest.PreferedBits = dhGroupExchangeMaximumBits
-	}
-	if kexDHGexRequest.PreferedBits < dhGroupExchangeMinimumBits {
-		kexDHGexRequest.PreferedBits = dhGroupExchangeMinimumBits
-	}
-	// fix min/max if they're inconsistent.  technically, we could just pout
-	// and hang up, but there's no harm in giving them the benefit of the
-	// doubt and just picking a bitsize for them.
-	if kexDHGexRequest.MinBits > kexDHGexRequest.PreferedBits {
-		kexDHGexRequest.MinBits = kexDHGexRequest.PreferedBits
-	}
-	if kexDHGexRequest.MaxBits < kexDHGexRequest.PreferedBits {
-		kexDHGexRequest.MaxBits = kexDHGexRequest.PreferedBits
-	}
-
 	// Send GexGroup
 	// This is the group called diffie-hellman-group14-sha1 in RFC
 	// 4253 and Oakley Group 14 in RFC 3526.
 	p, _ := new(big.Int).SetString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
-	gex.p = p
-	gex.g = big.NewInt(2)
+	g := big.NewInt(2)
 
-	kexDHGexGroup := kexDHGexGroupMsg{
-		P: gex.p,
-		G: gex.g,
+	msg := &kexDHGexGroupMsg{
+		P: p,
+		G: g,
 	}
-	if err := c.writePacket(Marshal(&kexDHGexGroup)); err != nil {
+	if err := c.writePacket(Marshal(msg)); err != nil {
 		return nil, err
 	}
 
@@ -723,19 +715,19 @@ func (gex dhGEXSHA) Server(c packetConn, randSource io.Reader, magics *handshake
 		return
 	}
 
-	var pHalf = &big.Int{}
-	pHalf.Rsh(gex.p, 1)
+	pHalf := new(big.Int).Rsh(p, 1)
 
 	y, err := rand.Int(randSource, pHalf)
 	if err != nil {
 		return
 	}
+	Y := new(big.Int).Exp(g, y, p)
 
-	Y := new(big.Int).Exp(gex.g, y, gex.p)
-	kInt, err := gex.diffieHellman(kexDHGexInit.X, y)
-	if err != nil {
-		return nil, err
+	pMinusOne := new(big.Int).Sub(p, bigOne)
+	if kexDHGexInit.X.Cmp(bigOne) <= 0 || kexDHGexInit.X.Cmp(pMinusOne) >= 0 {
+		return nil, errors.New("ssh: DH parameter out of bounds")
 	}
+	kInt := new(big.Int).Exp(kexDHGexInit.X, y, p)
 
 	hostKeyBytes := priv.PublicKey().Marshal()
 
@@ -745,8 +737,8 @@ func (gex dhGEXSHA) Server(c packetConn, randSource io.Reader, magics *handshake
 	binary.Write(h, binary.BigEndian, uint32(dhGroupExchangeMinimumBits))
 	binary.Write(h, binary.BigEndian, uint32(dhGroupExchangePreferredBits))
 	binary.Write(h, binary.BigEndian, uint32(dhGroupExchangeMaximumBits))
-	writeInt(h, gex.p)
-	writeInt(h, gex.g)
+	writeInt(h, p)
+	writeInt(h, g)
 	writeInt(h, kexDHGexInit.X)
 	writeInt(h, Y)
 
@@ -758,7 +750,7 @@ func (gex dhGEXSHA) Server(c packetConn, randSource io.Reader, magics *handshake
 
 	// H is already a hash, but the hostkey signing will apply its
 	// own key-specific hash algorithm.
-	sig, err := signAndMarshal(priv, randSource, H)
+	sig, err := signAndMarshal(priv, randSource, H, algo)
 	if err != nil {
 		return nil, err
 	}

vendor/golang.org/x/crypto/ssh/keys.go

@@ -30,8 +30,9 @@ import (
 	"golang.org/x/crypto/ssh/internal/bcrypt_pbkdf"
 )
 
-// These constants represent the algorithm names for key types supported by this
-// package.
+// Public key algorithms names. These values can appear in PublicKey.Type,
+// ClientConfig.HostKeyAlgorithms, Signature.Format, or as AlgorithmSigner
+// arguments.
 const (
 	KeyAlgoRSA        = "ssh-rsa"
 	KeyAlgoDSA        = "ssh-dss"
@@ -41,16 +42,21 @@ const (
 	KeyAlgoECDSA521   = "ecdsa-sha2-nistp521"
 	KeyAlgoED25519    = "ssh-ed25519"
 	KeyAlgoSKED25519  = "sk-ssh-ed25519@openssh.com"
+
+	// KeyAlgoRSASHA256 and KeyAlgoRSASHA512 are only public key algorithms, not
+	// public key formats, so they can't appear as a PublicKey.Type. The
+	// corresponding PublicKey.Type is KeyAlgoRSA. See RFC 8332, Section 2.
+	KeyAlgoRSASHA256 = "rsa-sha2-256"
+	KeyAlgoRSASHA512 = "rsa-sha2-512"
 )
 
-// These constants represent non-default signature algorithms that are supported
-// as algorithm parameters to AlgorithmSigner.SignWithAlgorithm methods. See
-// [PROTOCOL.agent] section 4.5.1 and
-// https://tools.ietf.org/html/draft-ietf-curdle-rsa-sha2-10
 const (
-	SigAlgoRSA        = "ssh-rsa"
-	SigAlgoRSASHA2256 = "rsa-sha2-256"
-	SigAlgoRSASHA2512 = "rsa-sha2-512"
+	// Deprecated: use KeyAlgoRSA.
+	SigAlgoRSA = KeyAlgoRSA
+	// Deprecated: use KeyAlgoRSASHA256.
+	SigAlgoRSASHA2256 = KeyAlgoRSASHA256
+	// Deprecated: use KeyAlgoRSASHA512.
+	SigAlgoRSASHA2512 = KeyAlgoRSASHA512
 )
 
 // parsePubKey parses a public key of the given algorithm.
@@ -70,7 +76,7 @@ func parsePubKey(in []byte, algo string) (pubKey PublicKey, rest []byte, err err
 	case KeyAlgoSKED25519:
 		return parseSKEd25519(in)
 	case CertAlgoRSAv01, CertAlgoDSAv01, CertAlgoECDSA256v01, CertAlgoECDSA384v01, CertAlgoECDSA521v01, CertAlgoSKECDSA256v01, CertAlgoED25519v01, CertAlgoSKED25519v01:
-		cert, err := parseCert(in, certToPrivAlgo(algo))
+		cert, err := parseCert(in, certKeyAlgoNames[algo])
 		if err != nil {
 			return nil, nil, err
 		}
@@ -289,18 +295,21 @@ func MarshalAuthorizedKey(key PublicKey) []byte {
 	return b.Bytes()
 }
 
-// PublicKey is an abstraction of different types of public keys.
+// PublicKey represents a public key using an unspecified algorithm.
+//
+// Some PublicKeys provided by this package also implement CryptoPublicKey.
 type PublicKey interface {
-	// Type returns the key's type, e.g. "ssh-rsa".
+	// Type returns the key format name, e.g. "ssh-rsa".
 	Type() string
 
-	// Marshal returns the serialized key data in SSH wire format,
-	// with the name prefix. To unmarshal the returned data, use
-	// the ParsePublicKey function.
+	// Marshal returns the serialized key data in SSH wire format, with the name
+	// prefix. To unmarshal the returned data, use the ParsePublicKey function.
 	Marshal() []byte
 
-	// Verify that sig is a signature on the given data using this
-	// key. This function will hash the data appropriately first.
+	// Verify that sig is a signature on the given data using this key. This
+	// method will hash the data appropriately first. sig.Format is allowed to
+	// be any signature algorithm compatible with the key type, the caller
+	// should check if it has more stringent requirements.
 	Verify(data []byte, sig *Signature) error
 }
 
@@ -311,25 +320,32 @@ type CryptoPublicKey interface {
 }
 
 // A Signer can create signatures that verify against a public key.
+//
+// Some Signers provided by this package also implement AlgorithmSigner.
 type Signer interface {
-	// PublicKey returns an associated PublicKey instance.
+	// PublicKey returns the associated PublicKey.
 	PublicKey() PublicKey
 
-	// Sign returns raw signature for the given data. This method
-	// will apply the hash specified for the keytype to the data.
+	// Sign returns a signature for the given data. This method will hash the
+	// data appropriately first. The signature algorithm is expected to match
+	// the key format returned by the PublicKey.Type method (and not to be any
+	// alternative algorithm supported by the key format).
 	Sign(rand io.Reader, data []byte) (*Signature, error)
 }
 
-// A AlgorithmSigner is a Signer that also supports specifying a specific
-// algorithm to use for signing.
+// An AlgorithmSigner is a Signer that also supports specifying an algorithm to
+// use for signing.
+//
+// An AlgorithmSigner can't advertise the algorithms it supports, so it should
+// be prepared to be invoked with every algorithm supported by the public key
+// format.
 type AlgorithmSigner interface {
 	Signer
 
-	// SignWithAlgorithm is like Signer.Sign, but allows specification of a
-	// non-default signing algorithm. See the SigAlgo* constants in this
-	// package for signature algorithms supported by this package. Callers may
-	// pass an empty string for the algorithm in which case the AlgorithmSigner
-	// will use its default algorithm.
+	// SignWithAlgorithm is like Signer.Sign, but allows specifying a desired
+	// signing algorithm. Callers may pass an empty string for the algorithm in
+	// which case the AlgorithmSigner will use a default algorithm. This default
+	// doesn't currently control any behavior in this package.
 	SignWithAlgorithm(rand io.Reader, data []byte, algorithm string) (*Signature, error)
 }
 
@@ -381,17 +397,11 @@ func (r *rsaPublicKey) Marshal() []byte {
 }
 
 func (r *rsaPublicKey) Verify(data []byte, sig *Signature) error {
-	var hash crypto.Hash
-	switch sig.Format {
-	case SigAlgoRSA:
-		hash = crypto.SHA1
-	case SigAlgoRSASHA2256:
-		hash = crypto.SHA256
-	case SigAlgoRSASHA2512:
-		hash = crypto.SHA512
-	default:
+	supportedAlgos := algorithmsForKeyFormat(r.Type())
+	if !contains(supportedAlgos, sig.Format) {
 		return fmt.Errorf("ssh: signature type %s for key type %s", sig.Format, r.Type())
 	}
+	hash := hashFuncs[sig.Format]
 	h := hash.New()
 	h.Write(data)
 	digest := h.Sum(nil)
@@ -466,7 +476,7 @@ func (k *dsaPublicKey) Verify(data []byte, sig *Signature) error {
 	if sig.Format != k.Type() {
 		return fmt.Errorf("ssh: signature type %s for key type %s", sig.Format, k.Type())
 	}
-	h := crypto.SHA1.New()
+	h := hashFuncs[sig.Format].New()
 	h.Write(data)
 	digest := h.Sum(nil)
 
@@ -499,7 +509,7 @@ func (k *dsaPrivateKey) PublicKey() PublicKey {
 }
 
 func (k *dsaPrivateKey) Sign(rand io.Reader, data []byte) (*Signature, error) {
-	return k.SignWithAlgorithm(rand, data, "")
+	return k.SignWithAlgorithm(rand, data, k.PublicKey().Type())
 }
 
 func (k *dsaPrivateKey) SignWithAlgorithm(rand io.Reader, data []byte, algorithm string) (*Signature, error) {
@@ -507,7 +517,7 @@ func (k *dsaPrivateKey) SignWithAlgorithm(rand io.Reader, data []byte, algorithm
 		return nil, fmt.Errorf("ssh: unsupported signature algorithm %s", algorithm)
 	}
 
-	h := crypto.SHA1.New()
+	h := hashFuncs[k.PublicKey().Type()].New()
 	h.Write(data)
 	digest := h.Sum(nil)
 	r, s, err := dsa.Sign(rand, k.PrivateKey, digest)
@@ -603,19 +613,6 @@ func supportedEllipticCurve(curve elliptic.Curve) bool {
 	return curve == elliptic.P256() || curve == elliptic.P384() || curve == elliptic.P521()
 }
 
-// ecHash returns the hash to match the given elliptic curve, see RFC
-// 5656, section 6.2.1
-func ecHash(curve elliptic.Curve) crypto.Hash {
-	bitSize := curve.Params().BitSize
-	switch {
-	case bitSize <= 256:
-		return crypto.SHA256
-	case bitSize <= 384:
-		return crypto.SHA384
-	}
-	return crypto.SHA512
-}
-
 // parseECDSA parses an ECDSA key according to RFC 5656, section 3.1.
 func parseECDSA(in []byte) (out PublicKey, rest []byte, err error) {
 	var w struct {
@@ -671,7 +668,7 @@ func (k *ecdsaPublicKey) Verify(data []byte, sig *Signature) error {
 		return fmt.Errorf("ssh: signature type %s for key type %s", sig.Format, k.Type())
 	}
 
-	h := ecHash(k.Curve).New()
+	h := hashFuncs[sig.Format].New()
 	h.Write(data)
 	digest := h.Sum(nil)
 
@@ -775,7 +772,7 @@ func (k *skECDSAPublicKey) Verify(data []byte, sig *Signature) error {
 		return fmt.Errorf("ssh: signature type %s for key type %s", sig.Format, k.Type())
 	}
 
-	h := ecHash(k.Curve).New()
+	h := hashFuncs[sig.Format].New()
 	h.Write([]byte(k.application))
 	appDigest := h.Sum(nil)
 
@@ -874,7 +871,7 @@ func (k *skEd25519PublicKey) Verify(data []byte, sig *Signature) error {
 		return fmt.Errorf("invalid size %d for Ed25519 public key", l)
 	}
 
-	h := sha256.New()
+	h := hashFuncs[sig.Format].New()
 	h.Write([]byte(k.application))
 	appDigest := h.Sum(nil)
 
@@ -961,44 +958,20 @@ func (s *wrappedSigner) PublicKey() PublicKey {
 }
 
 func (s *wrappedSigner) Sign(rand io.Reader, data []byte) (*Signature, error) {
-	return s.SignWithAlgorithm(rand, data, "")
+	return s.SignWithAlgorithm(rand, data, s.pubKey.Type())
 }
 
 func (s *wrappedSigner) SignWithAlgorithm(rand io.Reader, data []byte, algorithm string) (*Signature, error) {
-	var hashFunc crypto.Hash
-
-	if _, ok := s.pubKey.(*rsaPublicKey); ok {
-		// RSA keys support a few hash functions determined by the requested signature algorithm
-		switch algorithm {
-		case "", SigAlgoRSA:
-			algorithm = SigAlgoRSA
-			hashFunc = crypto.SHA1
-		case SigAlgoRSASHA2256:
-			hashFunc = crypto.SHA256
-		case SigAlgoRSASHA2512:
-			hashFunc = crypto.SHA512
-		default:
-			return nil, fmt.Errorf("ssh: unsupported signature algorithm %s", algorithm)
-		}
-	} else {
-		// The only supported algorithm for all other key types is the same as the type of the key
-		if algorithm == "" {
-			algorithm = s.pubKey.Type()
-		} else if algorithm != s.pubKey.Type() {
-			return nil, fmt.Errorf("ssh: unsupported signature algorithm %s", algorithm)
-		}
-
-		switch key := s.pubKey.(type) {
-		case *dsaPublicKey:
-			hashFunc = crypto.SHA1
-		case *ecdsaPublicKey:
-			hashFunc = ecHash(key.Curve)
-		case ed25519PublicKey:
-		default:
-			return nil, fmt.Errorf("ssh: unsupported key type %T", key)
-		}
+	if algorithm == "" {
+		algorithm = s.pubKey.Type()
 	}
 
+	supportedAlgos := algorithmsForKeyFormat(s.pubKey.Type())
+	if !contains(supportedAlgos, algorithm) {
+		return nil, fmt.Errorf("ssh: unsupported signature algorithm %q for key format %q", algorithm, s.pubKey.Type())
+	}
+
+	hashFunc := hashFuncs[algorithm]
 	var digest []byte
 	if hashFunc != 0 {
 		h := hashFunc.New()

vendor/golang.org/x/crypto/ssh/messages.go

@@ -141,6 +141,14 @@ type serviceAcceptMsg struct {
 	Service string `sshtype:"6"`
 }
 
+// See RFC 8308, section 2.3
+const msgExtInfo = 7
+
+type extInfoMsg struct {
+	NumExtensions uint32 `sshtype:"7"`
+	Payload       []byte `ssh:"rest"`
+}
+
 // See RFC 4252, section 5.
 const msgUserAuthRequest = 50
 
@@ -180,11 +188,11 @@ const msgUserAuthInfoRequest = 60
 const msgUserAuthInfoResponse = 61
 
 type userAuthInfoRequestMsg struct {
-	User               string `sshtype:"60"`
-	Instruction        string
-	DeprecatedLanguage string
-	NumPrompts         uint32
-	Prompts            []byte `ssh:"rest"`
+	Name        string `sshtype:"60"`
+	Instruction string
+	Language    string
+	NumPrompts  uint32
+	Prompts     []byte `ssh:"rest"`
 }
 
 // See RFC 4254, section 5.1.
@@ -782,6 +790,8 @@ func decode(packet []byte) (interface{}, error) {
 		msg = new(serviceRequestMsg)
 	case msgServiceAccept:
 		msg = new(serviceAcceptMsg)
+	case msgExtInfo:
+		msg = new(extInfoMsg)
 	case msgKexInit:
 		msg = new(kexInitMsg)
 	case msgKexDHInit:
@@ -843,6 +853,7 @@ var packetTypeNames = map[byte]string{
 	msgDisconnect:          "disconnectMsg",
 	msgServiceRequest:      "serviceRequestMsg",
 	msgServiceAccept:       "serviceAcceptMsg",
+	msgExtInfo:             "extInfoMsg",
 	msgKexInit:             "kexInitMsg",
 	msgKexDHInit:           "kexDHInitMsg",
 	msgKexDHReply:          "kexDHReplyMsg",

vendor/golang.org/x/crypto/ssh/server.go

@@ -120,7 +120,7 @@ type ServerConfig struct {
 }
 
 // AddHostKey adds a private key as a host key. If an existing host
-// key exists with the same algorithm, it is overwritten. Each server
+// key exists with the same public key format, it is replaced. Each server
 // config must have at least one host key.
 func (s *ServerConfig) AddHostKey(key Signer) {
 	for i, k := range s.hostKeys {
@@ -212,9 +212,10 @@ func NewServerConn(c net.Conn, config *ServerConfig) (*ServerConn, <-chan NewCha
 }
 
 // signAndMarshal signs the data with the appropriate algorithm,
-// and serializes the result in SSH wire format.
-func signAndMarshal(k Signer, rand io.Reader, data []byte) ([]byte, error) {
-	sig, err := k.Sign(rand, data)
+// and serializes the result in SSH wire format. algo is the negotiate
+// algorithm and may be a certificate type.
+func signAndMarshal(k AlgorithmSigner, rand io.Reader, data []byte, algo string) ([]byte, error) {
+	sig, err := k.SignWithAlgorithm(rand, data, underlyingAlgo(algo))
 	if err != nil {
 		return nil, err
 	}
@@ -284,7 +285,7 @@ func (s *connection) serverHandshake(config *ServerConfig) (*Permissions, error)
 
 func isAcceptableAlgo(algo string) bool {
 	switch algo {
-	case KeyAlgoRSA, KeyAlgoDSA, KeyAlgoECDSA256, KeyAlgoECDSA384, KeyAlgoECDSA521, KeyAlgoSKECDSA256, KeyAlgoED25519, KeyAlgoSKED25519,
+	case KeyAlgoRSA, KeyAlgoRSASHA256, KeyAlgoRSASHA512, KeyAlgoDSA, KeyAlgoECDSA256, KeyAlgoECDSA384, KeyAlgoECDSA521, KeyAlgoSKECDSA256, KeyAlgoED25519, KeyAlgoSKED25519,
 		CertAlgoRSAv01, CertAlgoDSAv01, CertAlgoECDSA256v01, CertAlgoECDSA384v01, CertAlgoECDSA521v01, CertAlgoSKECDSA256v01, CertAlgoED25519v01, CertAlgoSKED25519v01:
 		return true
 	}
@@ -553,6 +554,7 @@ userAuthLoop:
 				if !ok || len(payload) > 0 {
 					return nil, parseError(msgUserAuthRequest)
 				}
+
 				// Ensure the public key algo and signature algo
 				// are supported.  Compare the private key
 				// algorithm name that corresponds to algo with
@@ -562,7 +564,12 @@ userAuthLoop:
 					authErr = fmt.Errorf("ssh: algorithm %q not accepted", sig.Format)
 					break
 				}
-				signedData := buildDataSignedForAuth(sessionID, userAuthReq, algoBytes, pubKeyData)
+				if underlyingAlgo(algo) != sig.Format {
+					authErr = fmt.Errorf("ssh: signature %q not compatible with selected algorithm %q", sig.Format, algo)
+					break
+				}
+
+				signedData := buildDataSignedForAuth(sessionID, userAuthReq, algo, pubKeyData)
 
 				if err := pubKey.Verify(signedData, sig); err != nil {
 					return nil, err
@@ -633,6 +640,30 @@ userAuthLoop:
 		}
 
 		authFailures++
+		if config.MaxAuthTries > 0 && authFailures >= config.MaxAuthTries {
+			// If we have hit the max attempts, don't bother sending the
+			// final SSH_MSG_USERAUTH_FAILURE message, since there are
+			// no more authentication methods which can be attempted,
+			// and this message may cause the client to re-attempt
+			// authentication while we send the disconnect message.
+			// Continue, and trigger the disconnect at the start of
+			// the loop.
+			//
+			// The SSH specification is somewhat confusing about this,
+			// RFC 4252 Section 5.1 requires each authentication failure
+			// be responded to with a respective SSH_MSG_USERAUTH_FAILURE
+			// message, but Section 4 says the server should disconnect
+			// after some number of attempts, but it isn't explicit which
+			// message should take precedence (i.e. should there be a failure
+			// message than a disconnect message, or if we are going to
+			// disconnect, should we only send that message.)
+			//
+			// Either way, OpenSSH disconnects immediately after the last
+			// failed authnetication attempt, and given they are typically
+			// considered the golden implementation it seems reasonable
+			// to match that behavior.
+			continue
+		}
 
 		var failureMsg userAuthFailureMsg
 		if config.PasswordCallback != nil {
@@ -670,7 +701,7 @@ type sshClientKeyboardInteractive struct {
 	*connection
 }
 
-func (c *sshClientKeyboardInteractive) Challenge(user, instruction string, questions []string, echos []bool) (answers []string, err error) {
+func (c *sshClientKeyboardInteractive) Challenge(name, instruction string, questions []string, echos []bool) (answers []string, err error) {
 	if len(questions) != len(echos) {
 		return nil, errors.New("ssh: echos and questions must have equal length")
 	}
@@ -682,6 +713,7 @@ func (c *sshClientKeyboardInteractive) Challenge(user, instruction string, quest
 	}
 
 	if err := c.transport.writePacket(Marshal(&userAuthInfoRequestMsg{
+		Name:        name,
 		Instruction: instruction,
 		NumPrompts:  uint32(len(questions)),
 		Prompts:     prompts,

vendor/golang.org/x/crypto/ssh/session.go

@@ -85,6 +85,7 @@ const (
 	IXANY         = 39
 	IXOFF         = 40
 	IMAXBEL       = 41
+	IUTF8         = 42 // RFC 8160
 	ISIG          = 50
 	ICANON        = 51
 	XCASE         = 52

vendor/golang.org/x/crypto/ssh/transport.go

@@ -238,15 +238,19 @@ var (
 // (to setup server->client keys) or clientKeys (for client->server keys).
 func newPacketCipher(d direction, algs directionAlgorithms, kex *kexResult) (packetCipher, error) {
 	cipherMode := cipherModes[algs.Cipher]
-	macMode := macModes[algs.MAC]
 
 	iv := make([]byte, cipherMode.ivSize)
 	key := make([]byte, cipherMode.keySize)
-	macKey := make([]byte, macMode.keySize)
 
 	generateKeyMaterial(iv, d.ivTag, kex)
 	generateKeyMaterial(key, d.keyTag, kex)
-	generateKeyMaterial(macKey, d.macKeyTag, kex)
+
+	var macKey []byte
+	if !aeadCiphers[algs.Cipher] {
+		macMode := macModes[algs.MAC]
+		macKey = make([]byte, macMode.keySize)
+		generateKeyMaterial(macKey, d.macKeyTag, kex)
+	}
 
 	return cipherModes[algs.Cipher].create(key, iv, macKey, algs)
 }

vendor/modules.txt

@@ -347,7 +347,7 @@ github.com/urfave/cli/v2
 github.com/urfave/cli/v2/altsrc
 # go.opentelemetry.io/contrib/propagators v0.22.0
 ## explicit; go 1.15
-go.opentelemetry.io/contrib/propagators/Jaeger
+go.opentelemetry.io/contrib/propagators/jaeger
 # go.opentelemetry.io/otel v1.6.3
 ## explicit; go 1.16
 go.opentelemetry.io/otel
@@ -384,7 +384,7 @@ go.opentelemetry.io/proto/otlp/trace/v1
 go.uber.org/automaxprocs/internal/cgroups
 go.uber.org/automaxprocs/internal/runtime
 go.uber.org/automaxprocs/maxprocs
-# golang.org/x/crypto v0.0.0-20210921155107-089bfa567519
+# golang.org/x/crypto v0.0.0-20220427172511-eb4f295cb31f
 ## explicit; go 1.17
 golang.org/x/crypto/blake2b
 golang.org/x/crypto/blowfish
@@ -395,7 +395,6 @@ golang.org/x/crypto/cryptobyte/asn1
 golang.org/x/crypto/curve25519
 golang.org/x/crypto/curve25519/internal/field
 golang.org/x/crypto/ed25519
-golang.org/x/crypto/ed25519/internal/edwards25519
 golang.org/x/crypto/hkdf
 golang.org/x/crypto/internal/poly1305
 golang.org/x/crypto/internal/subtle