X-Git-Url: http://git.meshlink.io/?p=meshlink;a=blobdiff_plain;f=src%2Fconnection.h;h=5160422b346b9a01d054d7f828983dbe8421416a;hp=5ad7fcb9d04524e75f971bc2d7e7cd3bace4c629;hb=8c8b506da9ce578fe6e6e406a91bbd21af13f7a3;hpb=c23fcf555ee4b69f03b76a0ffb731c3a475a77e7 diff --git a/src/connection.h b/src/connection.h index 5ad7fcb9..5160422b 100644 --- a/src/connection.h +++ b/src/connection.h @@ -1,7 +1,9 @@ +#ifndef MESHLINK_CONNECTION_H +#define MESHLINK_CONNECTION_H + /* connection.h -- header for connection.c - Copyright (C) 2000-2009 Guus Sliepen , - 2000-2005 Ivo Timmermans + Copyright (C) 2000-2013, 2017 Guus Sliepen 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 @@ -13,105 +15,76 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - - $Id$ + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#ifndef __TINC_CONNECTION_H__ -#define __TINC_CONNECTION_H__ - -#include -#include - -#include "avl_tree.h" +#include "buffer.h" +#include "list.h" +#include "sptps.h" -#define OPTION_INDIRECT 0x0001 -#define OPTION_TCPONLY 0x0002 -#define OPTION_PMTU_DISCOVERY 0x0004 +#define OPTION_INDIRECT 0x0001 +#define OPTION_TCPONLY 0x0002 +#define OPTION_PMTU_DISCOVERY 0x0004 +#define OPTION_CLAMP_MSS 0x0008 +#define OPTION_VERSION(x) ((x) >> 24) /* Top 8 bits are for protocol minor version */ 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 unused:23; + uint16_t pinged: 1; /* sent ping */ + uint16_t active: 1; /* 1 if active.. */ + uint16_t connecting: 1; /* 1 if we are waiting for a non-blocking connect() to finish */ + uint16_t unused: 1; + uint16_t control: 1; /* 1 if this is a control connection */ + uint16_t pcap: 1; /* 1 if this is a control connection requesting packet capture */ + uint16_t log: 1; /* 1 if this is a control connection requesting log dump */ + uint16_t invitation: 1; /* 1 if this is an invitation */ + uint16_t invitation_used: 1; /* 1 if the invitation has been consumed */ + uint16_t initiator: 1; /* 1 if we initiated this connection */ } connection_status_t; +#include "ecdsa.h" #include "edge.h" -#include "list.h" #include "net.h" #include "node.h" +#include "submesh.h" typedef struct connection_t { - 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 */ - 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 */ - - char *outbuf; /* metadata output buffer */ - int outbufstart; /* index of first meaningful byte in output buffer */ - int outbuflen; /* number of meaningful bytes in output buffer */ - int outbufsize; /* number of bytes allocated to output buffer */ - - time_t last_ping_time; /* last time we saw some activity from the other end or pinged them */ - time_t last_flushed_time; /* last time buffer was empty. Only meaningful if outbuflen > 0 */ - - avl_tree_t *config_tree; /* Pointer to configuration tree belonging to him */ + char *name; /* name he claims to have */ + struct node_t *node; /* node associated with the other end */ + + connection_status_t status; /* status info */ + int socket; /* socket used for this connection */ + union sockaddr_t address; /* his real (internet) ip */ + + struct meshlink_handle *mesh; /* the mesh this connection belongs to */ + + // I/O + sptps_t sptps; + struct buffer_t inbuf; + struct buffer_t outbuf; + io_t io; /* input/output event on this metadata connection */ + 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 or pinged them */ + time_t last_key_renewal; /* last time we renewed the SPTPS key */ + + struct outgoing_t *outgoing; /* used to keep track of outgoing connections */ + + struct edge_t *edge; /* edge associated with this connection */ + struct submesh_t *submesh; /* his submesh handle if available in invitation file */ + + // Only used during authentication + ecdsa_t *ecdsa; /* his public ECDSA key */ + int protocol_major; /* used protocol */ + int protocol_minor; /* used protocol */ } connection_t; -extern avl_tree_t *connection_tree; -extern connection_t *broadcast; - -extern void init_connections(void); -extern void exit_connections(void); -extern connection_t *new_connection(void) __attribute__ ((__malloc__)); +extern void init_connections(struct meshlink_handle *mesh); +extern void exit_connections(struct meshlink_handle *mesh); +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 *); +extern void connection_add(struct meshlink_handle *mesh, connection_t *); +extern void connection_del(struct meshlink_handle *mesh, connection_t *); -#endif /* __TINC_CONNECTION_H__ */ +#endif