From: Guus Sliepen <guus@tinc-vpn.org>
Date: Sat, 18 May 2013 14:11:30 +0000 (+0200)
Subject: Send a new key when we receive packets from a node we don't have a valid key for.
X-Git-Tag: import-tinc-1.1~144
X-Git-Url: https://git.meshlink.io/?a=commitdiff_plain;h=bc87b450034382858822b918f43bdf31ad8e6995;p=meshlink

Send a new key when we receive packets from a node we don't have a valid key for.
---

diff --git a/src/net_packet.c b/src/net_packet.c
index 9024f262..26e49071 100644
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -332,13 +332,21 @@ static void receive_udppacket(node_t *n, vpn_packet_t *inpkt) {
 	size_t outlen;
 
 	if(n->status.sptps) {
+		if(!n->sptps.state) {
+			if(!n->status.waitingforkey) {
+				logger(DEBUG_TRAFFIC, LOG_DEBUG, "Got packet from %s (%s) but we haven't exchanged keys yet", n->name, n->hostname);
+				send_req_key(n);
+			} else {
+				logger(DEBUG_TRAFFIC, LOG_DEBUG, "Got packet from %s (%s) but he hasn't got our key yet", n->name, n->hostname);
+			}
+			return;
+		}
 		sptps_receive_data(&n->sptps, (char *)&inpkt->seqno, inpkt->len);
 		return;
 	}
 
 	if(!cipher_active(n->incipher)) {
-		logger(DEBUG_TRAFFIC, LOG_DEBUG, "Got packet from %s (%s) but he hasn't got our key yet",
-					n->name, n->hostname);
+		logger(DEBUG_TRAFFIC, LOG_DEBUG, "Got packet from %s (%s) but he hasn't got our key yet", n->name, n->hostname);
 		return;
 	}