src: add json support for last statement

This patch adds json support for the last statement, it works for me here.

However, tests/py still displays a warning:

any/last.t: WARNING: line 12: '{"nftables": [{"add": {"rule": {"family": "ip", "table": "test-ip4", "chain": "input", "expr": [{"last": {"used": 300000}}]}}}]}': '[{"last": {"used": 300000}}]' mismatches '[{"last": null}]'

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

1 files changed, 8 insertions, 0 deletions

diff --git a/src/json.c b/src/json.c
index 981d177b..305eb6e3 100644
--- a/src/json.c
+++ b/src/json.c
@@ -1482,6 +1482,14 @@ json_t *counter_stmt_json(const struct stmt *stmt, struct output_ctx *octx)
 			 "bytes", stmt->counter.bytes);
 }
 
+json_t *last_stmt_json(const struct stmt *stmt, struct output_ctx *octx)
+{
+	if (nft_output_stateless(octx) || stmt->last.set == 0)
+		return json_pack("{s:n}", "last");
+
+	return json_pack("{s:{s:I}}", "last", "used", stmt->last.used);
+}
+
 json_t *set_stmt_json(const struct stmt *stmt, struct output_ctx *octx)
 {
 	json_t *root;