Import Upstream version 1.0.3
This commit is contained in:
Guus Sliepen
parent
ed8d36a434
commit
c12028eeaa
196 changed files with 43077 additions and 32886 deletions
159
src/net.h
159
src/net.h
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/*
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net.h -- header for net.c
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Copyright (C) 1998-2002 Ivo Timmermans <zarq@iname.com>
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2000-2002 Guus Sliepen <guus@sliepen.warande.net>
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Copyright (C) 1998-2004 Ivo Timmermans <zarq@iname.com>
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2000-2004 Guus Sliepen <guus@tinc-vpn.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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@ -17,61 +17,61 @@
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: net.h,v 1.9.4.49 2002/03/27 15:01:36 guus Exp $
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$Id: net.h 1413 2004-11-10 21:56:31Z guus $
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*/
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#ifndef __TINC_NET_H__
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#define __TINC_NET_H__
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <sys/time.h>
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#include <openssl/evp.h>
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#include "config.h"
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#include "ipv6.h"
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#ifdef ENABLE_JUMBOGRAMS
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#define MTU 9014 /* 9000 bytes payload + 14 bytes ethernet header */
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#define MAXSIZE 9100 /* MTU + header (seqno) and trailer (CBC padding and HMAC) */
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#define MAXBUFSIZE 9100 /* Must support TCP packets of length 9000. */
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#define MTU 9018 /* 9000 bytes payload + 14 bytes ethernet header + 4 bytes VLAN tag */
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#else
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#define MTU 1514 /* 1500 bytes payload + 14 bytes ethernet header */
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#define MAXSIZE 1600 /* MTU + header (seqno) and trailer (CBC padding and HMAC) */
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#define MAXBUFSIZE 2100 /* Quite large but needed for support of keys up to 8192 bits. */
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#define MTU 1518 /* 1500 bytes payload + 14 bytes ethernet header + 4 bytes VLAN tag */
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#endif
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#define MAXSOCKETS 128 /* Overkill... */
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#define MAXSIZE (MTU + 4 + EVP_MAX_BLOCK_LENGTH + EVP_MAX_MD_SIZE + MTU/64 + 20) /* MTU + seqno + padding + HMAC + compressor overhead */
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#define MAXBUFSIZE ((MAXSIZE > 2048 ? MAXSIZE : 2048) + 128) /* Enough room for a request with a MAXSIZEd packet or a 8192 bits RSA key */
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#define MAXQUEUELENGTH 8 /* Maximum number of packats in a single queue */
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#define MAXSOCKETS 128 /* Overkill... */
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typedef struct mac_t
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{
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unsigned char x[6];
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#define MAXQUEUELENGTH 8 /* Maximum number of packats in a single queue */
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typedef struct mac_t {
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uint8_t x[6];
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} mac_t;
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typedef struct ipv4_t
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{
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unsigned char x[4];
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typedef struct ipv4_t {
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uint8_t x[4];
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} ipv4_t;
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typedef struct ip_mask_t {
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ipv4_t address;
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ipv4_t mask;
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} ip_mask_t;
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typedef struct ipv6_t
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{
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unsigned short x[8];
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typedef struct ipv6_t {
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uint16_t x[8];
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} ipv6_t;
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typedef unsigned short port_t;
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typedef short length_t;
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typedef union {
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struct sockaddr sa;
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struct sockaddr_in in;
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struct sockaddr_in6 in6;
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#define AF_UNKNOWN 255
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struct sockaddr_unknown {
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uint16_t family;
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uint16_t pad1;
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uint32_t pad2;
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char *address;
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char *port;
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};
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typedef union sockaddr_t {
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struct sockaddr sa;
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struct sockaddr_in in;
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struct sockaddr_in6 in6;
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struct sockaddr_unknown unknown;
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#ifdef HAVE_STRUCT_SOCKADDR_STORAGE
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struct sockaddr_storage storage;
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#endif
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} sockaddr_t;
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#ifdef SA_LEN
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@ -81,73 +81,80 @@ typedef union {
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#endif
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typedef struct vpn_packet_t {
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length_t len; /* the actual number of bytes in the `data' field */
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int priority; /* priority or TOS */
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unsigned int seqno; /* 32 bits sequence number (network byte order of course) */
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unsigned char data[MAXSIZE];
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length_t len; /* the actual number of bytes in the `data' field */
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int priority; /* priority or TOS */
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uint32_t seqno; /* 32 bits sequence number (network byte order of course) */
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uint8_t data[MAXSIZE];
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} vpn_packet_t;
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typedef struct queue_element_t {
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void *packet;
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struct queue_element_t *prev;
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struct queue_element_t *next;
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void *packet;
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struct queue_element_t *prev;
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struct queue_element_t *next;
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} queue_element_t;
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typedef struct packet_queue_t {
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queue_element_t *head;
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queue_element_t *tail;
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queue_element_t *head;
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queue_element_t *tail;
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} packet_queue_t;
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typedef struct outgoing_t {
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char *name;
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int timeout;
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struct config_t *cfg;
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struct addrinfo *ai;
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struct addrinfo *aip;
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} outgoing_t;
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typedef struct listen_socket_t {
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int tcp;
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int udp;
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sockaddr_t sa;
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int tcp;
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int udp;
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sockaddr_t sa;
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} listen_socket_t;
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#include "conf.h"
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typedef struct outgoing_t {
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char *name;
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int timeout;
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struct config_t *cfg;
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struct addrinfo *ai;
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struct addrinfo *aip;
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} outgoing_t;
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extern int maxtimeout;
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extern int seconds_till_retry;
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extern int addressfamily;
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extern char *request_name[];
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extern char *status_text[];
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#include "connection.h" /* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */
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extern bool blockingtcp;
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extern listen_socket_t listen_socket[MAXSOCKETS];
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extern int listen_sockets;
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extern int keyexpires;
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extern int keylifetime;
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extern int do_prune;
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extern int do_purge;
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extern bool do_prune;
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extern bool do_purge;
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extern char *myport;
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extern time_t now;
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extern EVP_CIPHER_CTX packet_ctx;
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/* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */
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#include "connection.h"
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#include "node.h"
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extern void retry_outgoing(outgoing_t *);
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extern void handle_incoming_vpn_data(int);
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extern void finish_connecting(connection_t *);
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extern void do_outgoing_connection(connection_t *);
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extern int handle_new_meta_connection(int);
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extern int setup_listen_socket(sockaddr_t *);
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extern int setup_vpn_in_socket(sockaddr_t *);
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extern void send_packet(struct node_t *, vpn_packet_t *);
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extern void receive_packet(struct node_t *, vpn_packet_t *);
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extern void finish_connecting(struct connection_t *);
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extern void do_outgoing_connection(struct connection_t *);
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extern bool handle_new_meta_connection(int);
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extern int setup_listen_socket(const sockaddr_t *);
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extern int setup_vpn_in_socket(const sockaddr_t *);
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extern void send_packet(const struct node_t *, vpn_packet_t *);
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extern void receive_tcppacket(struct connection_t *, char *, int);
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extern void broadcast_packet(struct node_t *, vpn_packet_t *);
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extern int setup_network_connections(void);
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extern void broadcast_packet(const struct node_t *, vpn_packet_t *);
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extern bool setup_network_connections(void);
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extern void setup_outgoing_connection(struct outgoing_t *);
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extern void try_outgoing_connections(void);
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extern void close_network_connections(void);
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extern void main_loop(void);
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extern void terminate_connection(connection_t *, int);
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extern int main_loop(void);
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extern void terminate_connection(struct connection_t *, bool);
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extern void flush_queue(struct node_t *);
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extern int read_rsa_public_key(struct connection_t *);
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extern bool read_rsa_public_key(struct connection_t *);
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extern void send_mtu_probe(struct node_t *);
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#endif /* __TINC_NET_H__ */
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#ifndef HAVE_MINGW
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#define closesocket(s) close(s)
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#endif
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#endif /* __TINC_NET_H__ */
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