/*
net.h -- header for net.c
- Copyright (C) 1998-2002 Ivo Timmermans <zarq@iname.com>
- 2000-2002 Guus Sliepen <guus@sliepen.eu.org>
+ Copyright (C) 1998-2005 Ivo Timmermans
+ 2000-2009 Guus Sliepen <guus@tinc-vpn.org>
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
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: net.h,v 1.9.4.56 2003/03/28 13:41:49 guus Exp $
*/
#ifndef __TINC_NET_H__
#define __TINC_NET_H__
-#include "config.h"
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <sys/time.h>
#include <openssl/evp.h>
-#ifdef HAVE_INTTYPES_H
-#include <inttypes.h>
-#endif
+#include "ipv6.h"
#ifdef ENABLE_JUMBOGRAMS
-#define MTU 9014 /* 9000 bytes payload + 14 bytes ethernet header */
-#define MAXSIZE 9100 /* MTU + header (seqno) and trailer (CBC padding and HMAC) */
-#define MAXBUFSIZE 9100 /* Must support TCP packets of length 9000. */
+#define MTU 9018 /* 9000 bytes payload + 14 bytes ethernet header + 4 bytes VLAN tag */
#else
-#define MTU 1514 /* 1500 bytes payload + 14 bytes ethernet header */
-#define MAXSIZE 1600 /* MTU + header (seqno) and trailer (CBC padding and HMAC) */
-#define MAXBUFSIZE 2100 /* Quite large but needed for support of keys up to 8192 bits. */
+#define MTU 1518 /* 1500 bytes payload + 14 bytes ethernet header + 4 bytes VLAN tag */
#endif
-#define MAXSOCKETS 128 /* Overkill... */
+#define MAXSIZE (MTU + 4 + EVP_MAX_BLOCK_LENGTH + EVP_MAX_MD_SIZE + MTU/64 + 20) /* MTU + seqno + padding + HMAC + compressor overhead */
+#define MAXBUFSIZE ((MAXSIZE > 2048 ? MAXSIZE : 2048) + 128) /* Enough room for a request with a MAXSIZEd packet or a 8192 bits RSA key */
-#define MAXQUEUELENGTH 8 /* Maximum number of packats in a single queue */
+#define MAXSOCKETS 128 /* Overkill... */
typedef struct mac_t {
uint8_t x[6];
uint8_t x[4];
} ipv4_t;
-typedef struct ip_mask_t {
- ipv4_t address;
- ipv4_t mask;
-} ip_mask_t;
-
typedef struct ipv6_t {
uint16_t x[8];
} ipv6_t;
typedef short length_t;
-typedef union {
+#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
uint8_t data[MAXSIZE];
} vpn_packet_t;
-typedef struct queue_element_t {
- void *packet;
- struct queue_element_t *prev;
- struct queue_element_t *next;
-} queue_element_t;
+typedef struct listen_socket_t {
+ int tcp;
+ int udp;
+ sockaddr_t sa;
+} listen_socket_t;
-typedef struct packet_queue_t {
- queue_element_t *head;
- queue_element_t *tail;
-} packet_queue_t;
+#include "conf.h"
+#include "list.h"
typedef struct outgoing_t {
char *name;
struct addrinfo *aip;
} outgoing_t;
-typedef struct listen_socket_t {
- int tcp;
- int udp;
- sockaddr_t sa;
-} listen_socket_t;
+extern list_t *outgoing_list;
-extern int maxtimeout;
+extern int maxoutbufsize;
extern int seconds_till_retry;
extern int addressfamily;
-extern char *request_name[];
-extern char *status_text[];
-
-#include "connection.h" /* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */
-
extern listen_socket_t listen_socket[MAXSOCKETS];
extern int listen_sockets;
extern int keyexpires;
extern int keylifetime;
-extern int do_prune;
-extern int do_purge;
+extern bool do_prune;
+extern bool do_purge;
extern char *myport;
extern time_t now;
-extern EVP_CIPHER_CTX packet_ctx;
+
+/* 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(int);
-extern void finish_connecting(connection_t *);
-extern void do_outgoing_connection(connection_t *);
-extern int handle_new_meta_connection(int);
-extern int setup_listen_socket(sockaddr_t *);
-extern int setup_vpn_in_socket(sockaddr_t *);
-extern void send_packet(struct node_t *, vpn_packet_t *);
-extern void receive_packet(struct node_t *, vpn_packet_t *);
+extern void finish_connecting(struct connection_t *);
+extern void do_outgoing_connection(struct connection_t *);
+extern bool handle_new_meta_connection(int);
+extern int setup_listen_socket(const sockaddr_t *);
+extern int setup_vpn_in_socket(const sockaddr_t *);
+extern void send_packet(const struct node_t *, vpn_packet_t *);
extern void receive_tcppacket(struct connection_t *, char *, int);
-extern void broadcast_packet(struct node_t *, vpn_packet_t *);
-extern int setup_network_connections(void);
+extern void broadcast_packet(const struct node_t *, vpn_packet_t *);
+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 void main_loop(void);
-extern void terminate_connection(connection_t *, int);
+extern int main_loop(void);
+extern void terminate_connection(struct connection_t *, bool);
extern void flush_queue(struct node_t *);
-extern int read_rsa_public_key(struct connection_t *);
+extern bool read_rsa_public_key(struct connection_t *);
+extern void send_mtu_probe(struct node_t *);
+
+#ifndef HAVE_MINGW
+#define closesocket(s) close(s)
+#else
+extern CRITICAL_SECTION mutex;
+#endif
#endif /* __TINC_NET_H__ */
projects / oweals / tinc.git / blobdiff