X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fconnection.h;h=f075f19a1b600a4d7d3aebeff01f4ee49c9bfef6;hp=c60562c245471a247a7990240ce74b05bcc084c4;hb=0e59fb022c6c015a5be7ed70e0378cb011be98b5;hpb=ec0c16b9b63f361b11a757ee1641d562e4811f93 diff --git a/src/connection.h b/src/connection.h index c60562c2..f075f19a 100644 --- a/src/connection.h +++ b/src/connection.h @@ -1,7 +1,7 @@ /* connection.h -- header for connection.c - Copyright (C) 2000,2001 Guus Sliepen , - 2000,2001 Ivo Timmermans + Copyright (C) 2000-2003 Guus Sliepen , + 2000-2003 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 @@ -17,86 +17,96 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id: connection.h,v 1.1.2.14 2001/10/10 08:49:47 guus Exp $ + $Id: connection.h,v 1.1.2.37 2003/11/10 22:31:53 guus Exp $ */ #ifndef __TINC_CONNECTION_H__ #define __TINC_CONNECTION_H__ -#include -#include +#include +#include -#include "config.h" +#include "avl_tree.h" -#ifdef HAVE_OPENSSL_EVP_H -# include -#else -# include -#endif - -#ifdef HAVE_OPENSSL_RSA_H -# include -#else -# include -#endif +#define OPTION_INDIRECT 0x0001 +#define OPTION_TCPONLY 0x0002 +typedef struct connection_status_t { + int pinged:1; /* sent ping */ + int active:1; /* 1 if active.. */ + 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 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 opaque:1; /* 1 if we do not forward information about other nodes */ + int strict:1; /* 1 if we strictly check edges and subnets received from this connection */ + int unused:18; +} connection_status_t; + +#include "edge.h" +#include "list.h" #include "net.h" -#include "conf.h" - #include "node.h" -#include "vertex.h" - -typedef struct status_bits_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 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 unused:18; -} status_bits_t; - -#define OPTION_INDIRECT 0x0001 -#define OPTION_TCPONLY 0x0002 typedef struct connection_t { - ipv4_t address; /* his real (internet) ip */ - short unsigned int port; /* port number of meta connection */ - 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 */ - - struct node_t *node; /* node associated with the other end */ - struct vertex_t *vertex; /* vertex 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 */ - 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 */ - char *mychallenge; /* challenge we received from him */ - char *hischallenge; /* challenge we sent to him */ - - char *buffer; /* 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 */ + char *name; /* name he claims to have */ + + union 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 */ + 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 */ + + char buffer[MAXBUFSIZE]; /* metadata input buffer */ + int buflen; /* bytes read into buffer */ + int reqlen; /* length of incoming request */ + 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 */ + + avl_tree_t *config_tree; /* Pointer to configuration tree belonging to him */ } connection_t; extern avl_tree_t *connection_tree; - -#endif /* __TINC_CONNECTION_H__ */ +extern connection_t *broadcast; + +extern void init_connections(void); +extern void exit_connections(void); +extern connection_t *new_connection(void) __attribute__ ((__malloc__)); +extern void free_connection(connection_t *); +extern void connection_add(connection_t *); +extern void connection_del(connection_t *); +extern void dump_connections(void); +extern bool read_connection_config(connection_t *); + +#endif /* __TINC_CONNECTION_H__ */