1 files changed, 32 insertions, 0 deletions
diff --git a/src/expr/osf.c b/src/expr/osf.c
index 215a681..666b6b7 100644
--- a/src/expr/osf.c
+++ b/src/expr/osf.c
@@ -11,6 +11,7 @@
 #include <libnftnl/rule.h>
 
 #define OSF_GENRE_SIZE	32
+#define NFT_OSF_MAXGENRELEN 16
 
 struct nftnl_expr_osf {
 	enum nft_registers	dreg;
@@ -125,6 +126,32 @@ nftnl_expr_osf_parse(struct nftnl_expr *e, struct nlattr *attr)
 }
 
 static int
+nftnl_expr_osf_reg_len(const struct nftnl_expr *e)
+{
+	return NFT_OSF_MAXGENRELEN;
+}
+
+static bool
+nftnl_expr_osf_reg_cmp(const struct nftnl_reg *reg,
+		       const struct nftnl_expr *e)
+{
+	const struct nftnl_expr_osf *osf = nftnl_expr_data(e);
+
+	return reg->osf.ttl == osf->ttl &&
+	       reg->osf.flags == osf->flags;
+}
+
+static void
+nftnl_expr_osf_reg_update(struct nftnl_reg *reg,
+			  const struct nftnl_expr *e)
+{
+	const struct nftnl_expr_osf *osf = nftnl_expr_data(e);
+
+	reg->osf.ttl = osf->ttl;
+	reg->osf.flags = osf->flags;
+}
+
+static int
 nftnl_expr_osf_snprintf(char *buf, size_t len,
 			uint32_t flags, const struct nftnl_expr *e)
 {
@@ -148,4 +175,9 @@ struct expr_ops expr_ops_osf = {
 	.parse		= nftnl_expr_osf_parse,
 	.build		= nftnl_expr_osf_build,
 	.snprintf	= nftnl_expr_osf_snprintf,
+	.reg		= {
+		.len	= nftnl_expr_osf_reg_len,
+		.cmp	= nftnl_expr_osf_reg_cmp,
+		.update	= nftnl_expr_osf_reg_update,
+	},
 };