1 files changed, 18 insertions, 0 deletions

diff --git a/scripts/netjail/netjail_test_master.sh b/scripts/netjail/netjail_test_master.sh
new file mode 100755
index 000000000..9487f3106
--- /dev/null
+++ b/scripts/netjail/netjail_test_master.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+if ! [ -d "/run/netns" ];
+then
+    echo "You have to create the directory '/run/netns'."
+    exit 77
+fi
+if [ -f /proc/sys/kernel/unprivileged_userns_clone ];
+then
+    if [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" != 1 ];
+    then
+        echo -e "Error during test setup: The kernel parameter 'kernel.unprivileged_userns_clone' has to be set to 1! One has to execute\n\n sysctl kernel.unprivileged_userns_clone=1\n"
+        exit 77
+    fi
+else
+    echo -e "Error during test setup: The kernel lacks the parameter 'kernel.unprivileged_userns_clone'\n"
+    exit 77
+fi
+exec unshare -r -nmU bash -c "mount -t tmpfs --make-rshared tmpfs /run/netns; $*"