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Let tinc figure out the exact MTU of the link.

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This commit is contained in:
Guus Sliepen 2003-12-20 19:47:53 +00:00
parent e8fbef5de6
commit 6b12bea62f
12 changed files with 193 additions and 78 deletions
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32
src/node.h
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@ -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;