diff --git a/vendor/github.com/jcmturner/gokrb5/v8/client/settings.go b/vendor/github.com/jcmturner/gokrb5/v8/client/settings.go
new file mode 100644
index 0000000..bcd3945
--- /dev/null
+++ b/vendor/github.com/jcmturner/gokrb5/v8/client/settings.go
@@ -0,0 +1,93 @@
+package client
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+)
+
+// Settings holds optional client settings.
+type Settings struct {
+	disablePAFXFast         bool
+	assumePreAuthentication bool
+	preAuthEType            int32
+	logger                  *log.Logger
+}
+
+// jsonSettings is used when marshaling the Settings details to JSON format.
+type jsonSettings struct {
+	DisablePAFXFast         bool
+	AssumePreAuthentication bool
+}
+
+// NewSettings creates a new client settings struct.
+func NewSettings(settings ...func(*Settings)) *Settings {
+	s := new(Settings)
+	for _, set := range settings {
+		set(s)
+	}
+	return s
+}
+
+// DisablePAFXFAST used to configure the client to not use PA_FX_FAST.
+//
+// s := NewSettings(DisablePAFXFAST(true))
+func DisablePAFXFAST(b bool) func(*Settings) {
+	return func(s *Settings) {
+		s.disablePAFXFast = b
+	}
+}
+
+// DisablePAFXFAST indicates is the client should disable the use of PA_FX_FAST.
+func (s *Settings) DisablePAFXFAST() bool {
+	return s.disablePAFXFast
+}
+
+// AssumePreAuthentication used to configure the client to assume pre-authentication is required.
+//
+// s := NewSettings(AssumePreAuthentication(true))
+func AssumePreAuthentication(b bool) func(*Settings) {
+	return func(s *Settings) {
+		s.assumePreAuthentication = b
+	}
+}
+
+// AssumePreAuthentication indicates if the client should proactively assume using pre-authentication.
+func (s *Settings) AssumePreAuthentication() bool {
+	return s.assumePreAuthentication
+}
+
+// Logger used to configure client with a logger.
+//
+// s := NewSettings(kt, Logger(l))
+func Logger(l *log.Logger) func(*Settings) {
+	return func(s *Settings) {
+		s.logger = l
+	}
+}
+
+// Logger returns the client logger instance.
+func (s *Settings) Logger() *log.Logger {
+	return s.logger
+}
+
+// Log will write to the service's logger if it is configured.
+func (cl *Client) Log(format string, v ...interface{}) {
+	if cl.settings.Logger() != nil {
+		cl.settings.Logger().Output(2, fmt.Sprintf(format, v...))
+	}
+}
+
+// JSON returns a JSON representation of the settings.
+func (s *Settings) JSON() (string, error) {
+	js := jsonSettings{
+		DisablePAFXFast:         s.disablePAFXFast,
+		AssumePreAuthentication: s.assumePreAuthentication,
+	}
+	b, err := json.MarshalIndent(js, "", "  ")
+	if err != nil {
+		return "", err
+	}
+	return string(b), nil
+
+}