X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fconnection.h;h=a6d8c58e2e9066eeb3ef9702e53a5efb08b89857;hp=e7397810b4d2c80c896caa4cde935df92cf90cfe;hb=82ebfc923ddb050c88bdf5d65ac943a15ca8748a;hpb=dac256505e1af78505c9f905bd55c11d4b87345c diff --git a/src/connection.h b/src/connection.h index e7397810..a6d8c58e 100644 --- a/src/connection.h +++ b/src/connection.h @@ -1,7 +1,7 @@ /* connection.h -- header for connection.c - Copyright (C) 2000 Guus Sliepen , - 2000 Ivo Timmermans + Copyright (C) 2000-2002 Guus Sliepen , + 2000-2002 Ivo Timmermans 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 @@ -17,15 +17,16 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id: connection.h,v 1.1.2.3 2000/11/22 22:18:03 guus Exp $ + $Id: connection.h,v 1.1.2.29 2002/09/04 13:48:51 guus Exp $ */ #ifndef __TINC_CONNECTION_H__ #define __TINC_CONNECTION_H__ -#include +#include -#include "config.h" +#include +#include #ifdef HAVE_OPENSSL_EVP_H # include @@ -42,83 +43,79 @@ #include "net.h" #include "conf.h" -typedef struct status_bits_t { +#include "node.h" +#include "edge.h" + +#define OPTION_INDIRECT 0x0001 +#define OPTION_TCPONLY 0x0002 + +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; - -typedef struct option_bits_t { - int unused:32; -} option_bits_t; +} connection_status_t; typedef struct connection_t { - char *name; /* name of this connection */ - ipv4_t address; /* his real (internet) ip */ + char *name; /* name he claims to have */ + + sockaddr_t address; /* his real (internet) ip */ char *hostname; /* the hostname of its real ip */ - short unsigned int port; /* his portnumber */ int protocol_version; /* used protocol */ - long unsigned int options; /* options turned on for this connection */ - - int flags; /* his flags */ - int socket; /* our udp vpn socket */ - int meta_socket; /* our tcp meta socket */ - status_bits_t status; /* status info */ - packet_queue_t *sq; /* pending outgoing packets */ - packet_queue_t *rq; /* pending incoming packets (they have no - valid key to be decrypted with) */ - RSA *rsa_key; /* the public/private key */ - - EVP_CIPHER_CTX *cipher_inctx; /* Context of encrypted meta data that will come from him to us */ - EVP_CIPHER_CTX *cipher_outctx; /* Context of encrypted meta data that will be sent from us to him */ - char *cipher_inkey; /* His symmetric meta key */ - char *cipher_outkey; /* Our symmetric meta key */ - - EVP_CIPHER *cipher_pkttype; /* Cipher type for encrypted vpn packets */ - char *cipher_pktkey; /* Cipher key and iv */ - int cipher_pktkeylength; /* Cipher key and iv length*/ - - char *buffer; /* metadata input buffer */ - int buflen; /* bytes read into buffer */ - int reqlen; /* length of first request in buffer */ - 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 */ + int socket; /* socket used for this connection */ + 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 edge_t *edge; /* edge associated with this connection */ + + RSA *rsa_key; /* his public/private key */ + 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 */ - struct connection_t *nexthop; /* nearest meta-hop in this direction */ - - rbltree_t *subnet_tree; /* Pointer to a tree of subnets belonging to this connection */ + char buffer[MAXBUFSIZE]; /* metadata input buffer */ + int buflen; /* bytes read into buffer */ + int tcplen; /* length of incoming TCPpacket */ + 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 */ - struct config_t *config; /* Pointer to configuration tree belonging to this host */ + avl_tree_t *config_tree; /* Pointer to configuration tree belonging to him */ } connection_t; -extern rbltree_t *connection_tree; -extern connection_t *myself; +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 id_add(connection_t *); extern void connection_add(connection_t *); extern void connection_del(connection_t *); -extern connection_t *lookup_id(char *); -extern connection_t *lookup_connection(ipv4_t, short unsigned int); -extern void dump_connection_list(void); -extern int read_host_config(connection_t *); -extern void destroy_connection_tree(void); -extern void prune_connection_tree(void); +extern void dump_connections(void); +extern int read_connection_config(connection_t *); #endif /* __TINC_CONNECTION_H__ */