src: add fwd statement for netdev

This patch add support for the forward statement, only available at the
netdev family.

 # nft add table netdev filter
 # nft add chain netdev filter ingress { type filter hook ingress device eth0 priority 0\; }
 # nft add rule netdev filter ingress fwd to dummy0

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/src/statement.c b/src/statement.c
index 153e93be..ca924410 100644
--- a/src/statement.c
+++ b/src/statement.c
@@ -490,3 +490,26 @@ struct stmt *dup_stmt_alloc(const struct location *loc)
 {
 	return stmt_alloc(loc, &dup_stmt_ops);
 }
+
+static void fwd_stmt_print(const struct stmt *stmt)
+{
+	printf("fwd to ");
+	expr_print(stmt->fwd.to);
+}
+
+static void fwd_stmt_destroy(struct stmt *stmt)
+{
+	expr_free(stmt->fwd.to);
+}
+
+static const struct stmt_ops fwd_stmt_ops = {
+	.type		= STMT_FWD,
+	.name		= "fwd",
+	.print		= fwd_stmt_print,
+	.destroy	= fwd_stmt_destroy,
+};
+
+struct stmt *fwd_stmt_alloc(const struct location *loc)
+{
+	return stmt_alloc(loc, &fwd_stmt_ops);
+}