/*
net.h -- header for net.c
- Copyright (C) 1998-2005 Ivo Timmermans
- 2000-2012 Guus Sliepen <guus@tinc-vpn.org>
+ Copyright (C) 2014 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
#ifndef __TINC_NET_H__
#define __TINC_NET_H__
-#include "ipv6.h"
-#include "cipher.h"
-#include "digest.h"
#include "event.h"
+#include "sockaddr.h"
#ifdef ENABLE_JUMBOGRAMS
#define MTU 9018 /* 9000 bytes payload + 14 bytes ethernet header + 4 bytes VLAN tag */
#define MTU 1518 /* 1500 bytes payload + 14 bytes ethernet header + 4 bytes VLAN tag */
#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)
+/* MAXSIZE is the maximum size of an encapsulated packet: MTU + seqno + HMAC + compressor overhead */
+#define MAXSIZE (MTU + 4 + 32 + MTU/64 + 20)
/* 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)
-#define MAXSOCKETS 8 /* Probably overkill... */
-
-typedef struct mac_t {
- uint8_t x[6];
-} mac_t;
-
-typedef struct ipv4_t {
- uint8_t x[4];
-} ipv4_t;
-
-typedef struct ipv6_t {
- uint16_t x[8];
-} ipv6_t;
-
-typedef short length_t;
-
-#define AF_UNKNOWN 255
-
-struct sockaddr_unknown {
- uint16_t family;
- uint16_t pad1;
- uint32_t pad2;
- char *address;
- char *port;
-};
-
-typedef union sockaddr_t {
- struct sockaddr sa;
- struct sockaddr_in in;
- struct sockaddr_in6 in6;
- struct sockaddr_unknown unknown;
-#ifdef HAVE_STRUCT_SOCKADDR_STORAGE
- struct sockaddr_storage storage;
-#endif
-} sockaddr_t;
-
-#ifdef SA_LEN
-#define SALEN(s) SA_LEN(&s)
-#else
-#define SALEN(s) (s.sa_family==AF_INET?sizeof(struct sockaddr_in):sizeof(struct sockaddr_in6))
-#endif
-
typedef struct vpn_packet_t {
- length_t len; /* the actual number of bytes in the `data' field */
- int priority; /* priority or TOS */
- uint32_t seqno; /* 32 bits sequence number (network byte order of course) */
+ struct {
+ unsigned int probe:1;
+ unsigned int tcp:1;
+ };
+ uint16_t len; /* the actual number of bytes in the `data' field */
uint8_t data[MAXSIZE];
} vpn_packet_t;
/* Packet types when using SPTPS */
#define PKT_COMPRESSED 1
-#define PKT_MAC 2
#define PKT_PROBE 4
typedef enum packet_type_t {
PACKET_PROBE
} packet_type_t;
-typedef struct listen_socket_t {
- io_t tcp;
- io_t udp;
- sockaddr_t sa;
-} listen_socket_t;
-
#include "conf.h"
#include "list.h"
typedef struct outgoing_t {
char *name;
int timeout;
- splay_tree_t *config_tree;
+ struct splay_tree_t *config_tree;
struct config_t *cfg;
struct addrinfo *ai;
struct addrinfo *aip;
timeout_t ev;
} outgoing_t;
-extern list_t *outgoing_list;
-
extern int maxoutbufsize;
-extern int seconds_till_retry;
extern int addressfamily;
extern unsigned replaywin;
-extern bool localdiscovery;
-extern listen_socket_t listen_socket[MAXSOCKETS];
-extern int listen_sockets;
extern int keylifetime;
-extern int udp_rcvbuf;
-extern int udp_sndbuf;
+extern int max_connection_burst;
extern bool do_prune;
-extern char *myport;
extern int autoconnect;
-extern int contradicting_add_edge;
-extern int contradicting_del_edge;
-extern time_t last_config_check;
-
-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;
-
-extern char *scriptinterpreter;
-extern char *scriptextension;
/* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */
#include "connection.h"
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 *, vpn_packet_t *);
+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 *, vpn_packet_t *);
+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 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 bool read_rsa_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 *);
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