mod-dnstap: fill out the destination address

diff --git a/src/knot/modules/dnstap/dnstap.c b/src/knot/modules/dnstap/dnstap.c
index 35eb2cbbe3ef00819aa39b9ef73c3f031c23cd35..0b3fdc7d6ca0bb21695e0a9ba21869a944cb99e6 100644 (file)
--- a/src/knot/modules/dnstap/dnstap.c
+++ b/src/knot/modules/dnstap/dnstap.c
@@ -1,4 +1,4 @@
-/*  Copyright (C) 2020 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+/*  Copyright (C) 2021 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -15,6 +15,7 @@
  */
 
 #include <netinet/in.h>
+#include <sys/socket.h>
 
 #include "contrib/dnstap/dnstap.h"
 #include "contrib/dnstap/dnstap.pb-c.h"
@@ -88,12 +89,18 @@ static knotd_state_t log_message(knotd_state_t state, const knot_pkt_t *pkt,
                protocol = IPPROTO_UDP;
        }
 
+       /* Try to get the destination address. */
+       struct sockaddr_storage dst_addr;
+       socklen_t dst_addr_len = sizeof(dst_addr);
+       (void)getsockname(qdata->params->socket, (struct sockaddr *)&dst_addr,
+                         &dst_addr_len);
+
        /* Create a dnstap message. */
        Dnstap__Message msg;
        int ret = dt_message_fill(&msg, msgtype,
                                  (const struct sockaddr *)qdata->params->remote,
-                                 NULL, /* todo: fill me! */
-                                 protocol, pkt->wire, pkt->size, &tv);
+                                 (struct sockaddr *)&dst_addr, protocol, pkt->wire,
+                                 pkt->size, &tv);
        if (ret != KNOT_EOK) {
                return state;
        }