ran go mod vendor on the whole project

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

@@ -523,117 +523,3 @@ func (r *retryableAuthMethod) method() string {
 func RetryableAuthMethod(auth AuthMethod, maxTries int) AuthMethod {
 	return &retryableAuthMethod{authMethod: auth, maxTries: maxTries}
 }
-
-// GSSAPIWithMICAuthMethod is an AuthMethod with "gssapi-with-mic" authentication.
-// See RFC 4462 section 3
-// gssAPIClient is implementation of the GSSAPIClient interface, see the definition of the interface for details.
-// target is the server host you want to log in to.
-func GSSAPIWithMICAuthMethod(gssAPIClient GSSAPIClient, target string) AuthMethod {
-	if gssAPIClient == nil {
-		panic("gss-api client must be not nil with enable gssapi-with-mic")
-	}
-	return &gssAPIWithMICCallback{gssAPIClient: gssAPIClient, target: target}
-}
-
-type gssAPIWithMICCallback struct {
-	gssAPIClient GSSAPIClient
-	target       string
-}
-
-func (g *gssAPIWithMICCallback) auth(session []byte, user string, c packetConn, rand io.Reader) (authResult, []string, error) {
-	m := &userAuthRequestMsg{
-		User:    user,
-		Service: serviceSSH,
-		Method:  g.method(),
-	}
-	// The GSS-API authentication method is initiated when the client sends an SSH_MSG_USERAUTH_REQUEST.
-	// See RFC 4462 section 3.2.
-	m.Payload = appendU32(m.Payload, 1)
-	m.Payload = appendString(m.Payload, string(krb5OID))
-	if err := c.writePacket(Marshal(m)); err != nil {
-		return authFailure, nil, err
-	}
-	// The server responds to the SSH_MSG_USERAUTH_REQUEST with either an
-	// SSH_MSG_USERAUTH_FAILURE if none of the mechanisms are supported or
-	// with an SSH_MSG_USERAUTH_GSSAPI_RESPONSE.
-	// See RFC 4462 section 3.3.
-	// OpenSSH supports Kerberos V5 mechanism only for GSS-API authentication,so I don't want to check
-	// selected mech if it is valid.
-	packet, err := c.readPacket()
-	if err != nil {
-		return authFailure, nil, err
-	}
-	userAuthGSSAPIResp := &userAuthGSSAPIResponse{}
-	if err := Unmarshal(packet, userAuthGSSAPIResp); err != nil {
-		return authFailure, nil, err
-	}
-	// Start the loop into the exchange token.
-	// See RFC 4462 section 3.4.
-	var token []byte
-	defer g.gssAPIClient.DeleteSecContext()
-	for {
-		// Initiates the establishment of a security context between the application and a remote peer.
-		nextToken, needContinue, err := g.gssAPIClient.InitSecContext("host@"+g.target, token, false)
-		if err != nil {
-			return authFailure, nil, err
-		}
-		if len(nextToken) > 0 {
-			if err := c.writePacket(Marshal(&userAuthGSSAPIToken{
-				Token: nextToken,
-			})); err != nil {
-				return authFailure, nil, err
-			}
-		}
-		if !needContinue {
-			break
-		}
-		packet, err = c.readPacket()
-		if err != nil {
-			return authFailure, nil, err
-		}
-		switch packet[0] {
-		case msgUserAuthFailure:
-			var msg userAuthFailureMsg
-			if err := Unmarshal(packet, &msg); err != nil {
-				return authFailure, nil, err
-			}
-			if msg.PartialSuccess {
-				return authPartialSuccess, msg.Methods, nil
-			}
-			return authFailure, msg.Methods, nil
-		case msgUserAuthGSSAPIError:
-			userAuthGSSAPIErrorResp := &userAuthGSSAPIError{}
-			if err := Unmarshal(packet, userAuthGSSAPIErrorResp); err != nil {
-				return authFailure, nil, err
-			}
-			return authFailure, nil, fmt.Errorf("GSS-API Error:\n"+
-				"Major Status: %d\n"+
-				"Minor Status: %d\n"+
-				"Error Message: %s\n", userAuthGSSAPIErrorResp.MajorStatus, userAuthGSSAPIErrorResp.MinorStatus,
-				userAuthGSSAPIErrorResp.Message)
-		case msgUserAuthGSSAPIToken:
-			userAuthGSSAPITokenReq := &userAuthGSSAPIToken{}
-			if err := Unmarshal(packet, userAuthGSSAPITokenReq); err != nil {
-				return authFailure, nil, err
-			}
-			token = userAuthGSSAPITokenReq.Token
-		}
-	}
-	// Binding Encryption Keys.
-	// See RFC 4462 section 3.5.
-	micField := buildMIC(string(session), user, "ssh-connection", "gssapi-with-mic")
-	micToken, err := g.gssAPIClient.GetMIC(micField)
-	if err != nil {
-		return authFailure, nil, err
-	}
-	if err := c.writePacket(Marshal(&userAuthGSSAPIMIC{
-		MIC: micToken,
-	})); err != nil {
-		return authFailure, nil, err
-	}
-	return handleAuthResponse(c)
-}
-
-func (g *gssAPIWithMICCallback) method() string {
-	return "gssapi-with-mic"
-}