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authorPatrick McHardy <kaber@trash.net>2007-12-17 22:26:54 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:58:49 -0800
commitd6a2ba07c31b0497fc82a8c175400ea8747da2ef (patch)
tree57e82c63adafdcf1bd80ed57290624a7d1a4ea5f /include
parent11f6dff8af95d8d1d14bef70d384029c5acf6e04 (diff)
[NETFILTER]: arp_tables: add compat support
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/netfilter_arp/arp_tables.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/include/linux/netfilter_arp/arp_tables.h b/include/linux/netfilter_arp/arp_tables.h
index 7ade26b025a4..53dd4df27aa1 100644
--- a/include/linux/netfilter_arp/arp_tables.h
+++ b/include/linux/netfilter_arp/arp_tables.h
@@ -281,5 +281,36 @@ extern unsigned int arpt_do_table(struct sk_buff *skb,
struct arpt_table *table);
#define ARPT_ALIGN(s) XT_ALIGN(s)
+
+#ifdef CONFIG_COMPAT
+#include <net/compat.h>
+
+struct compat_arpt_entry
+{
+ struct arpt_arp arp;
+ u_int16_t target_offset;
+ u_int16_t next_offset;
+ compat_uint_t comefrom;
+ struct compat_xt_counters counters;
+ unsigned char elems[0];
+};
+
+static inline struct arpt_entry_target *
+compat_arpt_get_target(struct compat_arpt_entry *e)
+{
+ return (void *)e + e->target_offset;
+}
+
+#define COMPAT_ARPT_ALIGN(s) COMPAT_XT_ALIGN(s)
+
+/* fn returns 0 to continue iteration */
+#define COMPAT_ARPT_ENTRY_ITERATE(entries, size, fn, args...) \
+ XT_ENTRY_ITERATE(struct compat_arpt_entry, entries, size, fn, ## args)
+
+#define COMPAT_ARPT_ENTRY_ITERATE_CONTINUE(entries, size, n, fn, args...) \
+ XT_ENTRY_ITERATE_CONTINUE(struct compat_arpt_entry, entries, size, n, \
+ fn, ## args)
+
+#endif /* CONFIG_COMPAT */
#endif /*__KERNEL__*/
#endif /* _ARPTABLES_H */