[NETFILTER]: x_tables: add data member to struct xt_match

Shared match functions can use this to make runtime decisions basen on the
used match.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index 9d97102a9347..03d1027fb0e8 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -185,6 +185,9 @@ struct xt_match
         /* Set this to THIS_MODULE if you are a module, otherwise NULL */
         struct module *me;
 
+        /* Free to use by each match */
+        unsigned long data;
+
         char *table;
         unsigned int matchsize;
         unsigned int hooks;