src: add offset attribute for hash expression

Add support to add an offset to the hash generator, eg.

 ct mark set hash ip saddr mod 10 offset 100

This will generate marks with series between 100-109.

Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/expression.h b/include/expression.h
index 3a52a45c..71e9c43e 100644
--- a/include/expression.h
+++ b/include/expression.h
@@ -307,6 +307,7 @@ struct expr {
 			struct expr		*expr;
 			uint32_t		mod;
 			uint32_t		seed;
+			uint32_t		offset;
 		} hash;
 		struct {
 			/* EXPR_FIB */