Introduce lightweight PMTU probe replies.

[tinc] / src / protocol.h

diff --git a/src/protocol.h b/src/protocol.h
index 41f74ab..1a68555 100644 (file)
--- a/src/protocol.h
+++ b/src/protocol.h
@@ -1,7 +1,7 @@
 /*
     protocol.h -- header for protocol.c
     Copyright (C) 1999-2005 Ivo Timmermans,
-                  2000-2009 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2012 Guus Sliepen <guus@tinc-vpn.org>
 
     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
@@ -21,10 +21,12 @@
 #ifndef __TINC_PROTOCOL_H__
 #define __TINC_PROTOCOL_H__
 
+#include "ecdsa.h"
+
 /* Protocol version. Different major versions are incompatible. */
 
 #define PROT_MAJOR 17
-#define PROT_MINOR 2 /* Should not exceed 255! */
+#define PROT_MINOR 3 /* Should not exceed 255! */
 
 /* Silly Windows */
 
@@ -35,7 +37,7 @@
 /* Request numbers */
 
 typedef enum request_t {
-       ALL = -1,                                       /* Guardian for allow_request */
+       ALL = -1,                                       /* Guardian for allow_request */
        ID = 0, METAKEY, CHALLENGE, CHAL_REPLY, ACK,
        STATUS, ERROR, TERMREQ,
        PING, PONG,
@@ -47,7 +49,7 @@ typedef enum request_t {
        CONTROL,
        REQ_PUBKEY, ANS_PUBKEY,
        REQ_SPTPS,
-       LAST                                            /* Guardian for the highest request number */
+       LAST                                            /* Guardian for the highest request number */
 } request_t;
 
 typedef struct past_request_t {
@@ -59,6 +61,8 @@ extern bool tunnelserver;
 extern bool strictsubnets;
 extern bool experimental;
 
+extern ecdsa_t *invitation_key;
+
 /* Maximum size of strings in a request.
  * scanf terminates %2048s with a NUL character,
  * but the NUL character can be written after the 2048th non-NUL character.
@@ -127,4 +131,4 @@ extern bool ans_key_h(struct connection_t *, const char *);
 extern bool tcppacket_h(struct connection_t *, const char *);
 extern bool control_h(struct connection_t *, const char *);
 
-#endif                                                 /* __TINC_PROTOCOL_H__ */
+#endif /* __TINC_PROTOCOL_H__ */