Let tinc figure out the exact MTU of the link.

[tinc] / src / node.h

diff --git a/src/node.h b/src/node.h
index 4407f99..7ce17eb 100644 (file)
--- a/src/node.h
+++ b/src/node.h
@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: node.h,v 1.1.2.29 2003/07/30 21:52:41 guus Exp $
+    $Id: node.h,v 1.1.2.30 2003/12/20 19:47:52 guus Exp $
 */
 
 #ifndef __TINC_NODE_H__
@@ -25,13 +25,14 @@
 
 #include "avl_tree.h"
 #include "connection.h"
+#include "event.h"
 #include "list.h"
 #include "subnet.h"
 
 typedef struct node_status_t {
        int active:1;                           /* 1 if active.. */
        int validkey:1;                         /* 1 if we currently have a valid key for him */
-       int waitingforkey:1;            /* 1 if we already sent out a request */
+       int waitingforkey:1;                    /* 1 if we already sent out a request */
        int visited:1;                          /* 1 if this node has been visited by one of the graph algorithms */
        int reachable:1;                        /* 1 if this node is reachable in the graph */
        int indirect:1;                         /* 1 if this node is not directly reachable by us */
@@ -39,7 +40,7 @@ typedef struct node_status_t {
 } node_status_t;
 
 typedef struct node_t {
-       char *name;                                     /* name of this node */
+       char *name;                             /* name of this node */
        long int options;                       /* options turned on for this node */
 
        sockaddr_t address;                     /* his real (internet) ip to send UDP packets to */
@@ -47,30 +48,35 @@ typedef struct node_t {
 
        node_status_t status;
 
-       const EVP_CIPHER *cipher;       /* Cipher type for UDP packets */
-       char *key;                                      /* Cipher key and iv */
+       const EVP_CIPHER *cipher;               /* Cipher type for UDP packets */
+       char *key;                              /* Cipher key and iv */
        int keylength;                          /* Cipher key and iv length */
-       EVP_CIPHER_CTX packet_ctx;      /* Cipher context */
+       EVP_CIPHER_CTX packet_ctx;              /* Cipher context */
        
-       const EVP_MD *digest;           /* Digest type for MAC */
+       const EVP_MD *digest;                   /* Digest type for MAC */
        int maclength;                          /* Length of MAC */
 
        int compression;                        /* Compressionlevel, 0 = no compression */
 
        list_t *queue;                          /* Queue for packets awaiting to be encrypted */
 
-       struct node_t *nexthop;         /* nearest node from us to him */
+       struct node_t *nexthop;                 /* nearest node from us to him */
        struct node_t *via;                     /* next hop for UDP packets */
 
-       avl_tree_t *subnet_tree;        /* Pointer to a tree of subnets belonging to this node */
+       avl_tree_t *subnet_tree;                /* Pointer to a tree of subnets belonging to this node */
 
-       avl_tree_t *edge_tree;          /* Edges with this node as one of the endpoints */
+       avl_tree_t *edge_tree;                  /* Edges with this node as one of the endpoints */
 
        struct connection_t *connection;        /* Connection associated with this node (if a direct connection exists) */
 
-       uint32_t sent_seqno;            /* Sequence number last sent to this node */
-       uint32_t received_seqno;        /* Sequence number last received from this node */
-       unsigned char late[16]; /* Bitfield marking late packets */
+       uint32_t sent_seqno;                    /* Sequence number last sent to this node */
+       uint32_t received_seqno;                /* Sequence number last received from this node */
+       unsigned char late[16];                 /* Bitfield marking late packets */
+
+       length_t mtu;                           /* Maximum size of packets to send to this node */
+       length_t probedmtu;                     /* Probed MTU */
+       int mtuprobes;                          /* Number of probes */
+       event_t *mtuevent;                      /* Probe event */
 } node_t;
 
 extern struct node_t *myself;