geoip: import 20080214 code base

extensions/xt_geoip.h

@@ -0,0 +1,53 @@
+/* ipt_geoip.h header file for libipt_geoip.c and ipt_geoip.c
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Copyright (c) 2004, 2005, 2006, 2007, 2008
+ *
+ * Samuel Jean
+ * Nicolas Bouliane
+ */
+#ifndef _XT_GEOIP_H
+#define _XT_GEOIP_H
+
+#define XT_GEOIP_SRC         0x01     /* Perform check on Source IP */
+#define XT_GEOIP_DST         0x02     /* Perform check on Destination IP */
+#define XT_GEOIP_INV         0x04     /* Negate the condition */
+
+#define XT_GEOIP_MAX         15       /* Maximum of countries */
+
+struct geoip_subnet {
+   u_int32_t begin;
+   u_int32_t end;
+};
+
+struct geoip_info {
+   struct geoip_subnet *subnets;
+   u_int32_t count;
+   u_int32_t ref;
+   u_int16_t cc;
+   struct geoip_info *next;
+   struct geoip_info *prev;
+};
+
+struct xt_geoip_match_info {
+   u_int8_t flags;
+   u_int8_t count;
+   u_int16_t cc[XT_GEOIP_MAX];
+
+   /* Used internally by the kernel */
+   struct geoip_info *mem[XT_GEOIP_MAX];
+   u_int8_t *refcount;
+
+   /* not implemented yet:
+   void *fini;
+   */
+};
+
+#define COUNTRY(cc) (cc >> 8), (cc & 0x00FF)
+
+#endif
+