Add query packet size to kr_request

This is useful when we do logging from the finish layer

daemon/lua/kres-gen.lua

@@ -145,6 +145,7 @@ struct kr_request {
 		const knot_pkt_t *packet;
 		const knot_rrset_t *opt;
 		_Bool tcp;
+		size_t size;
 	} qsource;
 	struct {
 		unsigned int rtt;

daemon/worker.c

@@ -285,6 +285,7 @@ static struct qr_task *qr_task_create(struct worker_ctx *worker, uv_handle_t *ha
 	task->req.qsource.dst_addr = NULL;
 	task->req.qsource.packet = NULL;
 	task->req.qsource.opt = NULL;
+	task->req.qsource.size = 0;
 	/* Remember query source addr */
 	if (addr) {
 		size_t addr_len = sizeof(struct sockaddr_in);
@@ -365,6 +366,9 @@ static int qr_task_start(struct qr_task *task, knot_pkt_t *query)
 		answer_max = MAX(knot_edns_get_payload(query->opt_rr), KNOT_WIRE_MIN_PKTSIZE);
 	}
 
+	/* Remember query packet size */
+	task->req.qsource.size = query->size;
+
 	knot_pkt_t *answer = knot_pkt_new(NULL, answer_max, &task->req.pool);
 	if (!answer) {
 		return kr_error(ENOMEM);

lib/resolve.h

@@ -189,6 +189,7 @@ struct kr_request {
 		const knot_pkt_t *packet;
 		const knot_rrset_t *opt;
 		bool tcp; /**< true if the request is on tcp; only meaningful if (dst_addr) */
+		size_t size; /**< query packet size */
 	} qsource;
 	struct {
 		unsigned rtt;                  /**< Current upstream RTT */