json: Support sets' auto-merge option

If enabled, list the option as additional attribute with boolean value.

Fixes: e70354f53e9f6 ("libnftables: Implement JSON output support")
Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1734
Signed-off-by: Phil Sutter <phil@nwl.cc>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/json.c b/src/json.c
index 6809cd50..b3e1e4e1 100644
--- a/src/json.c
+++ b/src/json.c
@@ -194,6 +194,8 @@ static json_t *set_print_json(struct output_ctx *octx, const struct set *set)
 		tmp = json_pack("i", set->gc_int / 1000);
 		json_object_set_new(root, "gc-interval", tmp);
 	}
+	if (set->automerge)
+		json_object_set_new(root, "auto-merge", json_true());
 
 	if (!nft_output_terse(octx) && set->init && set->init->size > 0) {
 		json_t *array = json_array();