[NETFILTER]: x_tables: add TCPOPTSTRIP target

Signed-off-by: Sven Schnelle <svens@bitebene.org>
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/netfilter/xt_TCPOPTSTRIP.h

@@ -0,0 +1,13 @@
+#ifndef _XT_TCPOPTSTRIP_H
+#define _XT_TCPOPTSTRIP_H
+
+#define tcpoptstrip_set_bit(bmap, idx) \
+	(bmap[(idx) >> 5] |= 1U << (idx & 31))
+#define tcpoptstrip_test_bit(bmap, idx) \
+	(((1U << (idx & 31)) & bmap[(idx) >> 5]) != 0)
+
+struct xt_tcpoptstrip_target_info {
+	u_int32_t strip_bmap[8];
+};
+
+#endif /* _XT_TCPOPTSTRIP_H */