X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fnet.h;h=2b50c5a2fab629965455db8b2205fe556055c782;hp=f1493eb19519c4beaebf77d603b973cd17dd094e;hb=0eceee6a66b28535a9c44d282e07a5825c7a1f04;hpb=52e7699273a3009fe4d91e608522401076922785 diff --git a/src/net.h b/src/net.h index f1493eb1..2b50c5a2 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) 1998-2005 Ivo Timmermans + 2000-2012 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 @@ -13,63 +13,61 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - 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 1.9.4.48 2002/03/22 11:43:48 guus Exp $ + 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., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef __TINC_NET_H__ #define __TINC_NET_H__ -#include -#include -#include -#include +#include -#include "config.h" +#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 MAXSOCKETS 128 /* Overkill... */ -typedef struct mac_t -{ - unsigned char x[6]; +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; -} 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; +#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 @@ -79,73 +77,97 @@ typedef union { #endif typedef struct vpn_packet_t { - length_t len; /* the actual number of bytes in the `data' field */ - int priority; /* priority or TOS */ - 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; -} 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; - 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; + struct event *event; } 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 unsigned replaywin; +extern bool localdiscovery; 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 int udp_rcvbuf; +extern int udp_sndbuf; +extern bool do_prune; +extern bool do_purge; extern char *myport; extern time_t now; +extern int contradicting_add_edge; +extern int contradicting_del_edge; + +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 volatile bool running; + +/* 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 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 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 *, const char *, int); +extern void broadcast_packet(const struct node_t *, vpn_packet_t *); +extern char *get_name(void); +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 *); +extern void load_all_subnets(void); + +#ifndef HAVE_MINGW +#define closesocket(s) close(s) +#else +extern CRITICAL_SECTION mutex; +#endif -#endif /* __TINC_NET_H__ */ +#endif /* __TINC_NET_H__ */