From: Guus Sliepen <guus@tinc-vpn.org>
Date: Sun, 11 Jan 2015 15:14:05 +0000 (+0100)
Subject: Send the size of the largest recently received packets in type 2 probe replies.
X-Git-Tag: release-1.1pre12~209
X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=commitdiff_plain;h=7b76b7ac35b49b8a94ad91c432886a0a54e144d1

Send the size of the largest recently received packets in type 2 probe replies.
---

diff --git a/src/net_packet.c b/src/net_packet.c
index 52c46e14..16f8e5ed 100644
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -114,7 +114,8 @@ static void send_udp_probe_reply(node_t *n, vpn_packet_t *packet, length_t len)
 	if ((n->options >> 24) >= 3) {
 		uint8_t *data = DATA(packet);
 		*data++ = 2;
-		uint16_t len16 = htons(len);
+		uint16_t len16 = htons(MAX(len, n->maxrecentlen));
+		n->maxrecentlen = 0;
 		memcpy(data, &len16, 2);
 		packet->len = MIN_PROBE_SIZE;
 	} else {