X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fnet_packet.c;h=426fa49179411f58eca7df0ddf8488eb31f39600;hp=9f61275106fc596a5990d33627f3113f252e9efb;hb=ab7c61b06f6c6e991225f2fcc32d02b8e1084aee;hpb=36f8e4da8b1708474505f5a1fa8cf1ba848921de

diff --git a/src/net_packet.c b/src/net_packet.c
index 9f612751..426fa491 100644
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -13,11 +13,9 @@
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    $Id$
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
 #include "system.h"
@@ -71,7 +69,7 @@ void send_mtu_probe(node_t *n)
 	n->mtuevent = NULL;
 
 	if(!n->status.reachable) {
-		ifdebug(TRAFFIC) logger(LOG_INFO, _("Trying to send MTU probe to unreachable node %s (%s)"), n->name, n->hostname);
+		logger(LOG_DEBUG, _("Trying to send MTU probe to unreachable node %s (%s)"), n->name, n->hostname);
 		return;
 	}
 
@@ -87,7 +85,7 @@ void send_mtu_probe(node_t *n)
 			return;
 		}
 
-		len = n->minmtu + 1 + random() % (n->maxmtu - n->minmtu);
+		len = n->minmtu + 1 + rand() % (n->maxmtu - n->minmtu);
 		if(len < 64)
 			len = 64;
 		
@@ -355,9 +353,9 @@ static void send_udppacket(node_t *n, vpn_packet_t *origpkt)
 		return;
 	}
 
-	if(n->options & OPTION_PMTU_DISCOVERY && !n->minmtu && (inpkt->data[12] | inpkt->data[13])) {
+	if(n->options & OPTION_PMTU_DISCOVERY && inpkt->len > n->minmtu && (inpkt->data[12] | inpkt->data[13])) {
 		ifdebug(TRAFFIC) logger(LOG_INFO,
-				_("No minimum MTU established yet for %s (%s), forwarding via TCP"),
+				_("Packet for %s (%s) larger than minimum MTU, forwarding via TCP"),
 				n->name, n->hostname);
 
 		send_tcppacket(n->nexthop->connection, origpkt);
@@ -552,7 +550,8 @@ void handle_incoming_vpn_data(int sock)
 	pkt.len = recvfrom(sock, (char *) &pkt.seqno, MAXSIZE, 0, &from.sa, &fromlen);
 
 	if(pkt.len < 0) {
-		logger(LOG_ERR, _("Receiving packet failed: %s"), strerror(errno));
+		if(errno != EAGAIN && errno != EINTR)
+			logger(LOG_ERR, _("Receiving packet failed: %s"), strerror(errno));
 		return;
 	}