src: remove STMT_NAT_F_INTERVAL flags and interval keyword

STMT_NAT_F_INTERVAL is not useful, the keyword interval can be removed
to simplify the syntax, e.g.

 snat to ip saddr map { 10.141.11.4 : 192.168.2.2-192.168.2.4 }

This patch reworks 9599d9d25a6b ("src: NAT support for intervals in
maps").

Do not remove STMT_NAT_F_INTERVAL yet since this flag is needed for
interval concatenations coming in a follow up patch.

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

1 files changed, 2 insertions, 6 deletions

diff --git a/src/parser_bison.y b/src/parser_bison.y
index 872d7cdb..790cd832 100644
--- a/src/parser_bison.y
+++ b/src/parser_bison.y
@@ -3623,28 +3623,24 @@ nat_stmt_args		:	stmt_expr
 			{
 				$<stmt>0->nat.family = $1;
 				$<stmt>0->nat.addr = $4;
-				$<stmt>0->nat.type_flags = STMT_NAT_F_INTERVAL;
 			}
 			|	INTERVAL TO	stmt_expr
 			{
 				$<stmt>0->nat.addr = $3;
-				$<stmt>0->nat.type_flags = STMT_NAT_F_INTERVAL;
 			}
 			|	nf_key_proto PREFIX TO	stmt_expr
 			{
 				$<stmt>0->nat.family = $1;
 				$<stmt>0->nat.addr = $4;
 				$<stmt>0->nat.type_flags =
-						STMT_NAT_F_PREFIX |
-						STMT_NAT_F_INTERVAL;
+						STMT_NAT_F_PREFIX;
 				$<stmt>0->nat.flags |= NF_NAT_RANGE_NETMAP;
 			}
 			|	PREFIX TO	stmt_expr
 			{
 				$<stmt>0->nat.addr = $3;
 				$<stmt>0->nat.type_flags =
-						STMT_NAT_F_PREFIX |
-						STMT_NAT_F_INTERVAL;
+						STMT_NAT_F_PREFIX;
 				$<stmt>0->nat.flags |= NF_NAT_RANGE_NETMAP;
 			}
 			;