Disallow gssapi authentication on local connections, since it

requires a hostname to function.

Noted by Zdenek Kotala

diff --git a/src/backend/libpq/hba.c b/src/backend/libpq/hba.c
index 7718b0be490b9e0cbefdba9604ed6d33caea282f..be6b2f742abe1883a930cd0f22d6e6c9ba1fb329 100644 (file)
--- a/src/backend/libpq/hba.c
+++ b/src/backend/libpq/hba.c
@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/libpq/hba.c,v 1.201 2010/03/06 00:45:49 tgl Exp $
+ *   $PostgreSQL: pgsql/src/backend/libpq/hba.c,v 1.202 2010/03/08 09:57:26 mha Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -998,6 +998,22 @@ parse_hba_line(List *line, int line_num, HbaLine *parsedline)
        return false;
    }
 
+   if (parsedline->conntype == ctLocal &&
+       parsedline->auth_method == uaGSS)
+   {
+       ereport(LOG,
+               (errcode(ERRCODE_CONFIG_FILE_ERROR),
+            errmsg("gssapi authentication is not supported on local sockets"),
+                errcontext("line %d of configuration file \"%s\"",
+                           line_num, HbaFileName)));
+       return false;
+   }
+   /*
+    * SSPI authentication can never be enabled on ctLocal connections, because
+    * it's only supported on Windows, where ctLocal isn't supported.
+    */
+
+
    if (parsedline->conntype != ctHostSSL &&
        parsedline->auth_method == uaCert)
    {