/*
connection.h -- header for connection.c
- Copyright (C) 2000,2001 Guus Sliepen <guus@sliepen.warande.net>,
- 2000,2001 Ivo Timmermans <itimmermans@bigfoot.com>
+ Copyright (C) 2000-2002 Guus Sliepen <guus@sliepen.warande.net>,
+ 2000-2002 Ivo Timmermans <itimmermans@bigfoot.com>
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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: connection.h,v 1.1.2.15 2001/10/10 09:42:29 guus Exp $
+ $Id: connection.h,v 1.1.2.26 2002/02/20 19:25:09 guus Exp $
*/
#ifndef __TINC_CONNECTION_H__
#define __TINC_CONNECTION_H__
+#include <sys/time.h>
+
#include <avl_tree.h>
#include <list.h>
-#include "config.h"
-
#ifdef HAVE_OPENSSL_EVP_H
# include <openssl/evp.h>
#else
#include "conf.h"
#include "node.h"
-#include "vertex.h"
+#include "edge.h"
+
+#define OPTION_INDIRECT 0x0001
+#define OPTION_TCPONLY 0x0002
-typedef struct status_bits_t {
+typedef struct connection_status_t {
int pinged:1; /* sent ping */
- int meta:1; /* meta connection exists */
int active:1; /* 1 if active.. */
- int outgoing:1; /* I myself asked for this conn */
+ int connecting:1; /* 1 if we are waiting for a non-blocking connect() to finish */
int termreq:1; /* the termination of this connection was requested */
int remove:1; /* Set to 1 if you want this connection removed */
int timeout:1; /* 1 if gotten timeout */
- 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 dataopen:1; /* 1 if we have a valid UDP connection open */
int encryptout:1; /* 1 if we can encrypt outgoing traffic */
int decryptin:1; /* 1 if we have to decrypt incoming traffic */
+ int mst:1; /* 1 if this connection is part of a minimum spanning tree */
int unused:18;
-} status_bits_t;
-
-#define OPTION_INDIRECT 0x0001
-#define OPTION_TCPONLY 0x0002
+} connection_status_t;
typedef struct connection_t {
- ipv4_t address; /* his real (internet) ip */
- short unsigned int port; /* port number of meta connection */
+ char *name; /* name he claims to have */
+
+ sockaddr_t address; /* his real (internet) ip */
char *hostname; /* the hostname of its real ip */
int protocol_version; /* used protocol */
int socket; /* socket used for this connection */
- status_bits_t status; /* status info */
+ long int options; /* options for this connection */
+ struct connection_status_t status; /* status info */
+ int estimated_weight; /* estimation for the weight of the edge for this connection */
+ struct timeval start; /* time this connection was started, used for above estimation */
+ struct outgoing_t *outgoing; /* used to keep track of outgoing connections */
struct node_t *node; /* node associated with the other end */
- struct vertex_t *vertex; /* vertex associated with this connection */
+ struct edge_t *edge; /* edge associated with this connection */
RSA *rsa_key; /* his public/private key */
- EVP_CIPHER *incipher; /* Cipher he will use to send data to us */
- EVP_CIPHER *outcipher; /* Cipher we will use to send data to him */
+ const EVP_CIPHER *incipher; /* Cipher he will use to send data to us */
+ const EVP_CIPHER *outcipher; /* Cipher we will use to send data to him */
EVP_CIPHER_CTX *inctx; /* Context of encrypted meta data that will come from him to us */
EVP_CIPHER_CTX *outctx; /* Context of encrypted meta data that will be sent from us to him */
char *inkey; /* His symmetric meta key + iv */
char *outkey; /* Our symmetric meta key + iv */
int inkeylength; /* Length of his key + iv */
int outkeylength; /* Length of our key + iv */
+ const EVP_MD *indigest;
+ const EVP_MD *outdigest;
+ int inmaclength;
+ int outmaclength;
+ int incompression;
+ int outcompression;
char *mychallenge; /* challenge we received from him */
char *hischallenge; /* challenge we sent to him */
int allow_request; /* defined if there's only one request possible */
time_t last_ping_time; /* last time we saw some activity from the other end */
+
+ avl_tree_t *config_tree; /* Pointer to configuration tree belonging to him */
} connection_t;
extern avl_tree_t *connection_tree;
+extern void init_connections(void);
+extern void exit_connections(void);
+extern connection_t *new_connection(void);
+extern void free_connection(connection_t *);
+extern void connection_add(connection_t *);
+extern void connection_del(connection_t *);
+extern void dump_connections(void);
+extern int read_connection_config(connection_t *);
+
#endif /* __TINC_CONNECTION_H__ */