/*
net.h -- header for net.c
Copyright (C) 1998-2002 Ivo Timmermans <zarq@iname.com>
- 2000-2002 Guus Sliepen <guus@sliepen.warande.net>
+ 2000-2002 Guus Sliepen <guus@sliepen.eu.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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: net.h,v 1.9.4.42 2002/02/26 22:47:51 guus Exp $
+ $Id: net.h,v 1.9.4.54 2002/09/10 22:12:33 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 "config.h"
+#ifdef HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
-#define MTU 1514 /* 1500 bytes payload + 14 bytes ethernet header */
-#define MAXSIZE 1600 /* MTU + header (seqno) and trailer (CBC padding and HMAC) */
+#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. */
+#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. */
+#endif
-#define MAXBUFSIZE 2048 /* Probably way too much, but it must fit every possible request. */
+#define MAXSOCKETS 128 /* Overkill... */
-typedef struct mac_t
-{
- unsigned char x[6];
+#define MAXQUEUELENGTH 8 /* Maximum number of packats in a single queue */
+
+typedef struct mac_t {
+ uint8_t x[6];
} mac_t;
-typedef struct ipv4_t
-{
- unsigned char x[4];
+typedef struct ipv4_t {
+ uint8_t x[4];
} ipv4_t;
typedef struct ip_mask_t {
- ipv4_t address;
- ipv4_t mask;
+ ipv4_t address;
+ ipv4_t mask;
} ip_mask_t;
-typedef struct ipv6_t
-{
- unsigned short x[8];
+typedef struct ipv6_t {
+ uint16_t x[8];
} ipv6_t;
typedef unsigned short port_t;
typedef short length_t;
typedef union {
- struct sockaddr sa;
- struct sockaddr_in in;
- struct sockaddr_in6 in6;
+ struct sockaddr sa;
+ struct sockaddr_in in;
+ struct sockaddr_in6 in6;
} sockaddr_t;
#ifdef SA_LEN
#endif
typedef struct vpn_packet_t {
- length_t len; /* the actual number of bytes in the `data' field */
- unsigned int seqno; /* 32 bits sequence number (network byte order of course) */
- unsigned char data[MAXSIZE];
+ 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) */
+ uint8_t data[MAXSIZE];
} vpn_packet_t;
typedef struct queue_element_t {
- void *packet;
- struct queue_element_t *prev;
- struct queue_element_t *next;
+ void *packet;
+ struct queue_element_t *prev;
+ struct queue_element_t *next;
} queue_element_t;
typedef struct packet_queue_t {
- queue_element_t *head;
- queue_element_t *tail;
+ queue_element_t *head;
+ queue_element_t *tail;
} packet_queue_t;
typedef struct outgoing_t {
- char *name;
- int timeout;
- struct config_t *cfg;
- struct addrinfo *ai;
- struct addrinfo *aip;
+ char *name;
+ int timeout;
+ struct config_t *cfg;
+ struct addrinfo *ai;
+ struct addrinfo *aip;
} outgoing_t;
+typedef struct listen_socket_t {
+ int tcp;
+ int udp;
+ sockaddr_t sa;
+} listen_socket_t;
+
extern int maxtimeout;
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 */
+#include "connection.h" /* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */
-extern int tcp_socket;
-extern int udp_socket;
+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 char *myport;
+extern time_t now;
extern void retry_outgoing(outgoing_t *);
-extern void handle_incoming_vpn_data(void);
+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(void);
+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 flush_queue(struct node_t *);
extern int read_rsa_public_key(struct connection_t *);
-#endif /* __TINC_NET_H__ */
+#endif /* __TINC_NET_H__ */