+#ifndef MESHLINK_NET_H
+#define MESHLINK_NET_H
+
/*
net.h -- header for net.c
- Copyright (C) 2014 Guus Sliepen <guus@meshlink.io>
+ Copyright (C) 2014, 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
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#ifndef __TINC_NET_H__
-#define __TINC_NET_H__
-
-#include "cipher.h"
-#include "digest.h"
#include "event.h"
#include "sockaddr.h"
+/* Maximum size of SPTPS payload */
#ifdef ENABLE_JUMBOGRAMS
-#define MTU 9018 /* 9000 bytes payload + 14 bytes ethernet header + 4 bytes VLAN tag */
+#define MTU 8951 /* 9000 bytes payload - 28 bytes IP+UDP header - 21 bytes SPTPS header+MAC */
#else
-#define MTU 1518 /* 1500 bytes payload + 14 bytes ethernet header + 4 bytes VLAN tag */
+#define MTU 1451 /* 1500 bytes payload - 28 bytes IP+UDP - 21 bytes SPTPS header+MAC */
#endif
-/* MAXSIZE is the maximum size of an encapsulated packet: MTU + seqno + padding + HMAC + compressor overhead */
-#define MAXSIZE (MTU + 4 + CIPHER_MAX_BLOCK_SIZE + DIGEST_MAX_SIZE + MTU/64 + 20)
+#define MINMTU 527 /* 576 minimum recommended Internet MTU - 28 bytes IP+UDP - 21 bytes SPTPS header+MAC */
-/* MAXBUFSIZE is the maximum size of a request: enough for a MAXSIZEd packet or a 8192 bits RSA key */
-#define MAXBUFSIZE ((MAXSIZE > 2048 ? MAXSIZE : 2048) + 128)
+/* MAXSIZE is the maximum size of an encapsulated packet */
+#define MAXSIZE (MTU + 64)
-#define MAXSOCKETS 8 /* Probably overkill... */
+/* MAXBUFSIZE is the maximum size of a request: enough for a base64 encoded MAXSIZEd packet plus request header */
+#define MAXBUFSIZE ((MAXSIZE * 8) / 6 + 128)
typedef struct vpn_packet_t {
- struct {
- unsigned int probe:1;
- unsigned int tcp:1;
- };
+ uint16_t probe: 1;
+ int16_t tcp: 1;
uint16_t len; /* the actual number of bytes in the `data' field */
uint8_t data[MAXSIZE];
} vpn_packet_t;
PACKET_PROBE
} packet_type_t;
-typedef struct listen_socket_t {
- struct io_t tcp;
- struct io_t udp;
- sockaddr_t sa;
- bool bindto;
-} listen_socket_t;
-
#include "conf.h"
#include "list.h"
typedef struct outgoing_t {
- char *name;
+ struct node_t *node;
+ enum {
+ OUTGOING_START,
+ OUTGOING_CANONICAL,
+ OUTGOING_RECENT,
+ OUTGOING_KNOWN,
+ OUTGOING_END,
+ OUTGOING_NO_KNOWN_ADDRESSES,
+ } state;
int timeout;
- struct splay_tree_t *config_tree;
- struct config_t *cfg;
+ timeout_t ev;
struct addrinfo *ai;
struct addrinfo *aip;
- timeout_t ev;
} outgoing_t;
-extern int maxoutbufsize;
-extern int seconds_till_retry;
-extern int addressfamily;
-extern unsigned replaywin;
-extern bool localdiscovery;
-extern sockaddr_t localdiscovery_address;
-
-extern listen_socket_t listen_socket[MAXSOCKETS];
-extern int listen_sockets;
-extern int keylifetime;
-extern int max_connection_burst;
-extern bool do_prune;
-extern char *myport;
-extern int autoconnect;
-extern bool disablebuggypeers;
-
-extern char *proxyhost;
-extern char *proxyport;
-extern char *proxyuser;
-extern char *proxypass;
-typedef enum proxytype_t {
- PROXY_NONE = 0,
- PROXY_SOCKS4,
- PROXY_SOCKS4A,
- PROXY_SOCKS5,
- PROXY_HTTP,
- PROXY_EXEC,
-} proxytype_t;
-extern proxytype_t proxytype;
-
/* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */
#include "connection.h"
#include "node.h"
-extern void retry_outgoing(outgoing_t *);
-extern void handle_incoming_vpn_data(void *, int);
-extern void finish_connecting(struct connection_t *);
-extern bool do_outgoing_connection(struct outgoing_t *);
-extern void handle_new_meta_connection(void *, int);
-extern int setup_listen_socket(const sockaddr_t *);
-extern int setup_vpn_in_socket(const sockaddr_t *);
-extern bool send_sptps_data(void *handle, uint8_t type, const char *data, size_t len);
-extern bool receive_sptps_record(void *handle, uint8_t type, const char *data, uint16_t len);
-extern void send_packet(struct node_t *, struct vpn_packet_t *);
-extern void receive_tcppacket(struct connection_t *, const char *, int);
-extern void broadcast_packet(const struct node_t *, struct vpn_packet_t *);
-extern char *get_name(void);
-extern bool setup_myself_reloadable(void);
-extern bool setup_network(void);
-extern void setup_outgoing_connection(struct outgoing_t *);
-extern void try_outgoing_connections(void);
-extern void close_network_connections(void);
-extern int main_loop(void);
-extern void terminate_connection(struct connection_t *, bool);
-extern bool node_read_ecdsa_public_key(struct node_t *);
-extern bool read_ecdsa_public_key(struct connection_t *);
-extern void send_mtu_probe(struct node_t *);
-extern void handle_device_data(void *, int);
-extern void handle_meta_connection_data(struct connection_t *);
-extern void regenerate_key(void);
-extern void purge(void);
-extern void retry(void);
-extern int reload_configuration(void);
-extern void load_all_subnets(void);
-extern void load_all_nodes(void);
+extern void init_outgoings(struct meshlink_handle *mesh);
+extern void exit_outgoings(struct meshlink_handle *mesh);
+
+extern void retry_outgoing(struct meshlink_handle *mesh, outgoing_t *);
+extern void handle_incoming_vpn_data(struct event_loop_t *loop, void *, int);
+extern void finish_connecting(struct meshlink_handle *mesh, struct connection_t *);
+extern void do_outgoing_connection(struct meshlink_handle *mesh, struct outgoing_t *);
+extern void handle_new_meta_connection(struct event_loop_t *loop, void *, int);
+extern int setup_tcp_listen_socket(struct meshlink_handle *mesh, const struct addrinfo *aip) __attribute__((__warn_unused_result__));
+extern int setup_udp_listen_socket(struct meshlink_handle *mesh, const struct addrinfo *aip) __attribute__((__warn_unused_result__));
+extern bool send_sptps_data(void *handle, uint8_t type, const void *data, size_t len);
+extern bool receive_sptps_record(void *handle, uint8_t type, const void *data, uint16_t len) __attribute__((__warn_unused_result__));
+extern void send_packet(struct meshlink_handle *mesh, struct node_t *, struct vpn_packet_t *);
+extern char *get_name(struct meshlink_handle *mesh) __attribute__((__warn_unused_result__));
+extern void load_all_nodes(struct meshlink_handle *mesh);
+extern bool setup_myself_reloadable(struct meshlink_handle *mesh) __attribute__((__warn_unused_result__));
+extern bool setup_network(struct meshlink_handle *mesh) __attribute__((__warn_unused_result__));
+extern void reset_outgoing(struct outgoing_t *);
+extern void setup_outgoing_connection(struct meshlink_handle *mesh, struct outgoing_t *);
+extern void close_network_connections(struct meshlink_handle *mesh);
+extern void main_loop(struct meshlink_handle *mesh);
+extern void terminate_connection(struct meshlink_handle *mesh, struct connection_t *, bool);
+extern bool node_read_public_key(struct meshlink_handle *mesh, struct node_t *) __attribute__((__warn_unused_result__));
+extern bool node_read_from_config(struct meshlink_handle *mesh, struct node_t *, const config_t *config) __attribute__((__warn_unused_result__));
+extern bool read_ecdsa_public_key(struct meshlink_handle *mesh, struct connection_t *) __attribute__((__warn_unused_result__));
+extern bool read_ecdsa_private_key(struct meshlink_handle *mesh) __attribute__((__warn_unused_result__));
+extern bool node_write_config(struct meshlink_handle *mesh, struct node_t *) __attribute__((__warn_unused_result__));
+extern void send_mtu_probe(struct meshlink_handle *mesh, struct node_t *);
+extern void handle_meta_connection_data(struct meshlink_handle *mesh, struct connection_t *);
+extern void retry(struct meshlink_handle *mesh);
+extern int check_port(struct meshlink_handle *mesh);
#ifndef HAVE_MINGW
#define closesocket(s) close(s)
-#else
-extern CRITICAL_SECTION mutex;
#endif
-#endif /* __TINC_NET_H__ */
+#endif
projects / meshlink / blobdiff