[NETFILTER]: ip_tables: fix compat related crash

[sfrench/cifs-2.6.git] / include / linux / netfilter_ipv4 / ip_tables.h

diff --git a/include/linux/netfilter_ipv4/ip_tables.h b/include/linux/netfilter_ipv4/ip_tables.h
index 2f46dd728ee1fa9596e4a491782543fc44946012..e992cd6b28f57798e17d4e3c7f7aa9c81554da01 100644 (file)
--- a/include/linux/netfilter_ipv4/ip_tables.h
+++ b/include/linux/netfilter_ipv4/ip_tables.h
@@ -264,6 +264,26 @@ ipt_get_target(struct ipt_entry *e)
        __ret;                                                  \
 })
 
        __ret;                                                  \
 })
 

+/* fn returns 0 to continue iteration */
+#define IPT_ENTRY_ITERATE_CONTINUE(entries, size, n, fn, args...) \
+({                                                             \
+       unsigned int __i, __n;                                  \
+       int __ret = 0;                                          \
+       struct ipt_entry *__entry;                              \
+                                                               \
+       for (__i = 0, __n = 0; __i < (size);                    \
+            __i += __entry->next_offset, __n++) {              \
+               __entry = (void *)(entries) + __i;              \
+               if (__n < n)                                    \
+                       continue;                               \
+                                                               \
+               __ret = fn(__entry , ## args);                  \
+               if (__ret != 0)                                 \
+                       break;                                  \
+       }                                                       \
+       __ret;                                                  \
+})
+

 /*
  *     Main firewall chains definitions and global var's definitions.
  */
 /*
  *     Main firewall chains definitions and global var's definitions.
  */