tests: avoid false failures with default ACLs

To reproduce:
  setfacl -dm group::rx .
  setfacl -dm other::rx .
  make check

* init.cfg (require_no_default_acl_): A new function to skip
when default ACLs are detected, or if the getfacl utility is
not available then skip if any non LSM ACLs detected.
* tests/cp/existing-perm-race.sh: Call require_no_default_acl_.
* tests/mkdir/parents.sh: Likewise.
* tests/mkdir/perm.sh: Likewise.

1 files changed, 9 insertions, 0 deletions

diff --git a/init.cfg b/init.cfg
index f71f94c7a..d6c0dcce5 100644
--- a/init.cfg
+++ b/init.cfg
@@ -60,6 +60,15 @@ getlimits_()
   test "$INT_MAX" || fatal_ "running getlimits"
 }
 
+require_no_default_acl_()
+{
+  if getfacl --version < /dev/null > /dev/null 2>&1; then
+    getfacl "$1" | grep '^default:' && skip_ 'Default ACL detected'
+  else
+    ls -ld "$1" | grep '.........+' && skip_ 'ACL detected'
+  fi
+}
+
 require_acl_()
 {
   getfacl --version < /dev/null > /dev/null 2>&1 \