Fix: setting krbspn and krbsrvname did'n work

config.go

@@ -41,7 +41,9 @@ type Config struct {
 	BuildFrontend  BuildFrontendFunc
 	RuntimeParams  map[string]string // Run-time parameters to set on connection as session default values (e.g. search_path or application_name)
 
-	Fallbacks []*FallbackConfig
+	KerberosSrvName string
+	KerberosSpn     string
+	Fallbacks       []*FallbackConfig
 
 	// ValidateConnect is called during a connection attempt after a successful authentication with the PostgreSQL server.
 	// It can be used to validate that the server is acceptable. If this returns an error the connection is closed and the next
@@ -265,6 +267,14 @@ func ParseConfig(connString string) (*Config, error) {
 		"servicefile":          {},
 	}
 
+	// Adding kerberos configuration
+	if _, present := settings["krbsrvname"]; present {
+		config.KerberosSrvName = settings["krbsrvname"]
+	}
+	if _, present := settings["krbspn"]; present {
+		config.KerberosSpn = settings["krbspn"]
+	}
+
 	for k, v := range settings {
 		if _, present := notRuntimeParams[k]; present {
 			continue

krb5.go

@@ -41,14 +41,14 @@ func (c *PgConn) gssAuth() error {
 	}
 
 	var nextData []byte
-	if spn, ok := c.config.RuntimeParams["krbspn"]; ok {
+	if c.config.KerberosSpn != "" {
 		// Use the supplied SPN if provided.
-		nextData, err = cli.GetInitTokenFromSPN(spn)
+		nextData, err = cli.GetInitTokenFromSPN(c.config.KerberosSpn)
 	} else {
 		// Allow the kerberos service name to be overridden
 		service := "postgres"
-		if val, ok := c.config.RuntimeParams["krbsrvname"]; ok {
+		if c.config.KerberosSrvName != "" {
-			service = val
+			service = c.config.KerberosSrvName
 		}
 		nextData, err = cli.GetInitToken(c.config.Host, service)
 	}