netfilter: xt_HMARK: fix endianness and provide consistent hashing

This patch addresses two issues:

a) Fix usage of u32 and __be32 that causes endianess warnings via sparse.
b) Ensure consistent hashing in a cluster that is composed of big and
   little endian systems. Thus, we obtain the same hash mark in an
   heterogeneous cluster.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Schillstrom <hans@schillstrom.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/netfilter/xt_HMARK.h b/include/linux/netfilter/xt_HMARK.h
index abb1650940d2..826fc5807577 100644
--- a/include/linux/netfilter/xt_HMARK.h
+++ b/include/linux/netfilter/xt_HMARK.h
@@ -27,7 +27,12 @@ union hmark_ports {
                 __u16   src;
                 __u16   dst;
         } p16;
+        struct {
+                __be16  src;
+                __be16  dst;
+        } b16;
         __u32   v32;
+        __be32  b32;
 };
 
 struct xt_hmark_info {