X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fnet.h;h=cadb76e8296c29aeae32a252310d575a3dffe28b;hp=490cdcf3794bf977703c38eb59c6d25b1dcec437;hb=98edfb14fcc7167d24d440ed2772d0755daac3b7;hpb=eaf1208e9d5c5a15e4b23de936830520bf3b5685 diff --git a/src/net.h b/src/net.h index 490cdcf3..cadb76e8 100644 --- a/src/net.h +++ b/src/net.h @@ -1,7 +1,7 @@ /* net.h -- header for net.c - Copyright (C) 1998-2002 Ivo Timmermans - 2000-2002 Guus Sliepen + Copyright (C) 1998-2003 Ivo Timmermans + 2000-2003 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 @@ -17,33 +17,25 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id: net.h,v 1.9.4.54 2002/09/10 22:12:33 guus Exp $ + $Id: net.h,v 1.9.4.72 2003/10/08 12:09:37 guus Exp $ */ #ifndef __TINC_NET_H__ #define __TINC_NET_H__ -#include "config.h" +#include -#include -#include -#include -#include - -#ifdef HAVE_INTTYPES_H -#include -#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. */ #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 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 MAXSOCKETS 128 /* Overkill... */ #define MAXQUEUELENGTH 8 /* Maximum number of packats in a single queue */ @@ -56,23 +48,30 @@ typedef struct ipv4_t { 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 unsigned short port_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 @@ -99,6 +98,14 @@ typedef struct packet_queue_t { queue_element_t *tail; } packet_queue_t; +typedef struct listen_socket_t { + int tcp; + int udp; + sockaddr_t sa; +} listen_socket_t; + +#include "conf.h" + typedef struct outgoing_t { char *name; int timeout; @@ -107,48 +114,45 @@ typedef struct outgoing_t { 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 */ - 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_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 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 *); + +#ifndef HAVE_MINGW +#define closesocket(s) close(s) +#endif #endif /* __TINC_NET_H__ */