zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/app/iptables/extensions/libxt_standard.c b/ap/app/iptables/extensions/libxt_standard.c
new file mode 100755
index 0000000..54e1348
--- /dev/null
+++ b/ap/app/iptables/extensions/libxt_standard.c
@@ -0,0 +1,36 @@
+/* Shared library add-on to iptables for standard target support. */
+#include <stdio.h>
+#include <netdb.h>
+#include <string.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <getopt.h>
+#include <xtables.h>
+
+static void standard_help(void)
+{
+	printf(
+"standard match options:\n"
+"(If target is DROP, ACCEPT, RETURN or nothing)\n");
+}
+
+static int standard_parse(int c, char **argv, int invert, unsigned int *flags,
+                          const void *entry, struct xt_entry_target **target)
+{
+	return 0;
+}
+
+static struct xtables_target standard_target = {
+	.family		= AF_UNSPEC,
+	.name		= "standard",
+	.version	= XTABLES_VERSION,
+	.size		= XT_ALIGN(sizeof(int)),
+	.userspacesize	= XT_ALIGN(sizeof(int)),
+	.help		= standard_help,
+	.parse		= standard_parse,
+};
+
+void _init(void)
+{
+	xtables_register_target(&standard_target);
+}