src: allow listing all ct helpers

this implements
nft list ct helpers table filter
table ip filter {
    ct helper ftp-standard {
..

Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/rule.c b/src/rule.c
index 17c20f35..453aa2f2 100644
--- a/src/rule.c
+++ b/src/rule.c
@@ -1455,6 +1455,8 @@ static int do_command_list(struct netlink_ctx *ctx, struct cmd *cmd)
 	case CMD_OBJ_QUOTA:
 	case CMD_OBJ_QUOTAS:
 		return do_list_obj(ctx, cmd, NFT_OBJECT_QUOTA);
+	case CMD_OBJ_CT_HELPERS:
+		return do_list_obj(ctx, cmd, NFT_OBJECT_CT_HELPER);
 	default:
 		BUG("invalid command object type %u\n", cmd->obj);
 	}