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-rwxr-xr-xextensions/.u32-test3
1 files changed, 3 insertions, 0 deletions
diff --git a/extensions/.u32-test b/extensions/.u32-test
new file mode 100755
index 00000000..77d8a00c
--- /dev/null
+++ b/extensions/.u32-test
@@ -0,0 +1,3 @@
+#!/bin/sh
+# True if u32 is applied.
+[ -f $KERNEL_DIR/include/linux/netfilter_ipv4/ipt_u32.h ] && echo u32