gssd picking wrong creds

I'm running rpc.gssd with the the -n option. Noticed that with the new
version it's now creating the machine cache file which is also owned by root so when it scans the cache files it matches the root user and then depending on the timestamp it can grab the wrong file.

Doug

nfs-utils-ignore-machine-cred.diff

commit 891bf46cd23dbbb24188456aad29ac0ead2bc31f

Author: Doug Nazar <[email protected]>
Date:   Sat Jul 3 23:12:27 2010 -0400

When not using machine credentials for root, if the machine credential cache file is newer than the root credential file the wrong file will get picked. Ignore the machine file in this case.

utils/gssd/krb5_util.c +7 -0

index dccbeb6..d23654f 100644
@@ -224,6 +224,13 @@ gssd_find_existing_krb5_ccache(uid_t uid, char *dirname, struct dirent **d)
 				free(namelist[i]);
 				continue;
 			}
+			if (uid == 0 && !root_uses_machine_creds && 
+				strstr(namelist[i]->d_name, "_machine_")) {
+				printerr(3, "CC file '%s' not available to root\n",
+					 statname);
+				free(namelist[i]);
+				continue;
+			}
 			if (!query_krb5_ccache(buf, &princname, &realm)) {
 				printerr(3, "CC file '%s' is expired or corrupt\n",
 					 statname);