From 04135b0208b9e9379d08e030821ac64668a1615f Mon Sep 17 00:00:00 2001
From: Erez Zadok <ezk@cs.sunysb.edu>
Date: Sat, 14 May 2022 19:01:51 -0400
Subject: [PATCH] update idmap-test.sh

---
 idmap-tests/idmap-test.sh | 50 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100755 idmap-tests/idmap-test.sh

diff --git a/idmap-tests/idmap-test.sh b/idmap-tests/idmap-test.sh
new file mode 100755
index 0000000..40359fb
--- /dev/null
+++ b/idmap-tests/idmap-test.sh
@@ -0,0 +1,50 @@
+#!/bin/sh
+# XXX: fill in
+
+SCRATCH_DEV=/dev/sdb
+SCRATCH_DIR=/n/scratch
+LOWER_DIR=/n/lower
+TMP_DIR=/n/tmp
+FS_TYPE=ext4
+
+function runcmd
+{
+    echo "CMD: $@"
+    sleep 0.25
+    $@
+    ret=$?
+    if test $ret -ne 0 && test "$1 $2 $3" != 'mount -t wrapfs'; then
+	echo "$0: exit code $ret"
+	exit $ret
+    fi
+}
+
+dirs="$TMP_DIR $LOWER_DIR $SCRATCH_DIR"
+for d in $dirs; do
+	echo checking dir $d
+	if cat /proc/mounts | grep $d; then
+		runcmd umount $d
+	fi
+done
+
+runcmd mkfs -t $FS_TYPE $SCRATCH_DEV <<< y
+runcmd mount $SCRATCH_DEV $SCRATCH_DIR
+runcmd rm -rf $SCRATCH_DIR/*
+runcmd touch $SCRATCH_DIR/root
+runcmd touch $SCRATCH_DIR/ubuntu
+runcmd chown ubuntu $SCRATCH_DIR/ubuntu
+runcmd touch $SCRATCH_DIR/luser
+runcmd chown luser $SCRATCH_DIR/luser
+ls1=$(ls -l $SCRATCH_DIR)
+
+runcmd ./mount-idmapped --map-mount b:0:1000:1 --map-mount b:1000:1001:1 --map-mount b:1001:0:1 $SCRATCH_DIR $LOWER_DIR
+runcmd mount -t wrapfs $LOWER_DIR $TMP_DIR
+if test $ret != 32; then
+	echo wrapfs returned unexpected error: $ret
+else
+	echo wrapfs returned correct error attempting to mount on idmapped mount
+fi
+
+#ls2=$(ls -l $TMP_DIR)
+#echo $ls1
+#echo $ls2
-- 
2.34.1