X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fnet.h;h=93ac391e4e7883116bade65b247145c2d673ebae;hp=8d416ec2a5f314985e819aea7fe64ad7b7e20e53;hb=f0aa9641e82fb6e09c1e485366d14dddaa7f7c36;hpb=950fb8e916b0e248dcaa72c96859acd6046683aa diff --git a/src/net.h b/src/net.h index 8d416ec2..93ac391e 100644 --- a/src/net.h +++ b/src/net.h @@ -1,6 +1,7 @@ /* net.h -- header for net.c - Copyright (C) 1998,1999,2000 Ivo Timmermans + Copyright (C) 1998-2002 Ivo Timmermans + 2000-2002 Guus Sliepen 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 @@ -16,7 +17,7 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id: net.h,v 1.9.4.14 2000/10/11 10:35:16 guus Exp $ + $Id: net.h,v 1.9.4.38 2002/02/10 21:57:54 guus Exp $ */ #ifndef __TINC_NET_H__ @@ -25,34 +26,12 @@ #include #include "config.h" -#include "conf.h" -#include "connlist.h" -#define MAXSIZE 1700 /* should be a bit more than the MTU for the tapdevice */ -#define MTU 1600 - -#define MAC_ADDR_S "%02x:%02x:%02x:%02x:%02x:%02x" -#define MAC_ADDR_V(x) ((unsigned char*)&(x))[0],((unsigned char*)&(x))[1], \ - ((unsigned char*)&(x))[2],((unsigned char*)&(x))[3], \ - ((unsigned char*)&(x))[4],((unsigned char*)&(x))[5] - -#define IP_ADDR_S "%d.%d.%d.%d" - -#ifdef WORDS_BIGENDIAN -# define IP_ADDR_V(x) ((unsigned char*)&(x))[0],((unsigned char*)&(x))[1], \ - ((unsigned char*)&(x))[2],((unsigned char*)&(x))[3] -#else -# define IP_ADDR_V(x) ((unsigned char*)&(x))[3],((unsigned char*)&(x))[2], \ - ((unsigned char*)&(x))[1],((unsigned char*)&(x))[0] -#endif +#define MTU 1514 /* 1500 bytes payload + 14 bytes ethernet header */ +#define MAXSIZE 1600 /* MTU + header (seqno) and trailer (CBC padding and HMAC) */ #define MAXBUFSIZE 2048 /* Probably way too much, but it must fit every possible request. */ -/* flags */ -#define INDIRECTDATA 0x0001 /* Used to indicate that this host has to be reached indirect */ -#define EXPORTINDIRECTDATA 0x0002 /* Used to indicate uplink that it has to tell others to do INDIRECTDATA */ -#define TCPONLY 0x0004 /* Tells sender to send packets over TCP instead of UDP (for firewalls) */ - typedef struct mac_t { unsigned char x[6]; @@ -60,7 +39,10 @@ typedef struct mac_t typedef unsigned long ipv4_t; -typedef ipv4_t ip_t; /* alias for ipv4_t */ +typedef struct ip_mask_t { + ipv4_t address; + ipv4_t mask; +} ip_mask_t; typedef struct ipv6_t { @@ -72,36 +54,11 @@ typedef unsigned short port_t; typedef short length_t; typedef struct vpn_packet_t { - length_t len; /* the actual number of bytes in the `data' field */ + 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]; } vpn_packet_t; -typedef struct passphrase_t { - unsigned short len; - unsigned char *phrase; -} passphrase_t; - -typedef struct status_bits_t { - int pinged:1; /* sent ping */ - int got_pong:1; /* received pong */ - int meta:1; /* meta connection exists */ - int active:1; /* 1 if active.. */ - int outgoing:1; /* I myself asked for this conn */ - int termreq:1; /* the termination of this connection was requested */ - int remove:1; /* Set to 1 if you want this connection removed */ - int timeout:1; /* 1 if gotten timeout */ - int validkey:1; /* 1 if we currently have a valid key for him */ - int waitingforkey:1; /* 1 if we already sent out a request */ - int dataopen:1; /* 1 if we have a valid UDP connection open */ - int encryptout:1; /* 1 if we can encrypt outgoing traffic */ - int decryptin:1; /* 1 if we have to decrypt incoming traffic */ - int unused:18; -} status_bits_t; - -typedef struct option_bits_t { - int unused:32; -} option_bits_t; - typedef struct queue_element_t { void *packet; struct queue_element_t *prev; @@ -113,32 +70,30 @@ typedef struct packet_queue_t { queue_element_t *tail; } packet_queue_t; -typedef struct enc_key_t { - int length; - char *key; - time_t expiry; -} enc_key_t; +typedef struct outgoing_t { + char *name; + int timeout; +} outgoing_t; -extern int tap_fd; +extern int maxtimeout; +extern int seconds_till_retry; -extern int total_tap_in; -extern int total_tap_out; -extern int total_socket_in; -extern int total_socket_out; +extern char *request_name[]; +extern char *status_text[]; -extern char *request_name[256]; -extern char *status_text[10]; +#include "connection.h" /* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */ -extern int str2opt(const char *); -extern char *opt2str(int); -extern int send_packet(ip_t, vpn_packet_t *); +extern void send_packet(struct node_t *, vpn_packet_t *); +extern void receive_packet(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 setup_outgoing_connection(struct outgoing_t *); +extern void try_outgoing_connections(void); extern void close_network_connections(void); extern void main_loop(void); -extern int setup_vpn_connection(conn_list_t *); -extern void terminate_connection(conn_list_t *); -extern void flush_queues(conn_list_t*); -extern int xrecv(vpn_packet_t *); -extern void add_queue(packet_queue_t **, void *, size_t); +extern void terminate_connection(connection_t *, int); +extern void flush_queue(struct node_t *); +extern int read_rsa_public_key(struct connection_t *); #endif /* __TINC_NET_H__ */