X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Fnet.h;h=5ea2ae3ed28bd88c036e0fd3076b53dfe689d9a6;hb=fec95d1221c2d7e2059d6ba2fe244211ccee95ad;hp=cae63bf12a33795bf763d72fbf3a33e32df676ea;hpb=b70b090a28ff4cbdce29a3ad030f7d51ce9079b2;p=meshlink

diff --git a/src/net.h b/src/net.h
index cae63bf1..5ea2ae3e 100644
--- a/src/net.h
+++ b/src/net.h
@@ -23,17 +23,20 @@
 #include "event.h"
 #include "sockaddr.h"
 
+/* Maximum size of SPTPS payload */
 #ifdef ENABLE_JUMBOGRAMS
-#define MTU 9018        /* 9000 bytes payload + 14 bytes ethernet header + 4 bytes VLAN tag */
+#define MTU 8951        /* 9000 bytes payload - 28 bytes IP+UDP header - 21 bytes SPTPS header+MAC */
 #else
-#define MTU 1518        /* 1500 bytes payload + 14 bytes ethernet header + 4 bytes VLAN tag */
+#define MTU 1451        /* 1500 bytes payload - 28 bytes IP+UDP - 21 bytes SPTPS header+MAC */
 #endif
 
-/* MAXSIZE is the maximum size of an encapsulated packet: MTU + seqno + HMAC + compressor overhead */
-#define MAXSIZE (MTU + 4 + 32 + MTU/64 + 20)
+#define MINMTU 527      /* 576 minimum recommended Internet MTU - 28 bytes IP+UDP - 21 bytes SPTPS header+MAC */
 
-/* MAXBUFSIZE is the maximum size of a request: enough for a MAXSIZEd packet or a 8192 bits RSA key */
-#define MAXBUFSIZE ((MAXSIZE > 2048 ? MAXSIZE : 2048) + 128)
+/* MAXSIZE is the maximum size of an encapsulated packet */
+#define MAXSIZE (MTU + 64)
+
+/* MAXBUFSIZE is the maximum size of a request: enough for a base64 encoded MAXSIZEd packet plus request header */
+#define MAXBUFSIZE ((MAXSIZE * 8) / 6 + 128)
 
 typedef struct vpn_packet_t {
 	uint16_t probe: 1;
@@ -60,6 +63,7 @@ typedef struct outgoing_t {
 	struct node_t *node;
 	enum {
 		OUTGOING_START,
+		OUTGOING_CANONICAL_RESOLVE,
 		OUTGOING_CANONICAL,
 		OUTGOING_RECENT,
 		OUTGOING_KNOWN,