+#ifndef MESHLINK_CONNECTION_H
+#define MESHLINK_CONNECTION_H
+
/*
connection.h -- header for connection.c
- Copyright (C) 2000-2006 Guus Sliepen <guus@tinc-vpn.org>,
- 2000-2005 Ivo Timmermans
+ Copyright (C) 2000-2013, 2017 Guus Sliepen <guus@meshlink.io>
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
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 <openssl/rsa.h>
-#include <openssl/evp.h>
-
-#include <event.h>
-
-#include "splay_tree.h"
-
-#define OPTION_INDIRECT 0x0001
-#define OPTION_TCPONLY 0x0002
-#define OPTION_PMTU_DISCOVERY 0x0004
-
-typedef union connection_status_t {
- struct {
- 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_unused:1; /* Set to 1 if you want this connection removed */
- int timeout_unused: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;
- };
- uint32_t value;
+#include "buffer.h"
+#include "list.h"
+#include "sptps.h"
+
+#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 {
+ 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 */
-
- struct event ev; /* events on this metadata connection */
- 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 */
- struct event outev; /* events on this metadata connection */
-
- time_t last_ping_time; /* last time we saw some activity from the other end or pinged them */
-
- splay_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 splay_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
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