Updating HEAD branch #4; Merging CABAL -> HEAD.
This commit is contained in:
Ivo Timmermans
parent
e64ef59df4
commit
462ab530e5
58 changed files with 9898 additions and 2867 deletions
153
src/net.h
153
src/net.h
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@ -1,6 +1,7 @@
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/*
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net.h -- header for net.c
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Copyright (C) 1998,1999,2000 Ivo Timmermans <zarq@iname.com>
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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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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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@ -16,49 +17,47 @@
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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 1.10 2000/10/18 20:12:09 zarq Exp $
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$Id: net.h,v 1.11 2002/04/09 15:26:00 zarq Exp $
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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 "config.h"
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#define MAXSIZE 1700 /* should be a bit more than the MTU for the tapdevice */
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#define MTU 1600
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#define MAC_ADDR_S "%02x:%02x:%02x:%02x:%02x:%02x"
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#define MAC_ADDR_V(x) ((unsigned char*)&(x))[0],((unsigned char*)&(x))[1], \
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((unsigned char*)&(x))[2],((unsigned char*)&(x))[3], \
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((unsigned char*)&(x))[4],((unsigned char*)&(x))[5]
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#define IP_ADDR_S "%d.%d.%d.%d"
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#ifdef WORDS_BIGENDIAN
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# define IP_ADDR_V(x) ((unsigned char*)&(x))[0],((unsigned char*)&(x))[1], \
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((unsigned char*)&(x))[2],((unsigned char*)&(x))[3]
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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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#else
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# define IP_ADDR_V(x) ((unsigned char*)&(x))[3],((unsigned char*)&(x))[2], \
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((unsigned char*)&(x))[1],((unsigned char*)&(x))[0]
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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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#endif
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#define MAXBUFSIZE 4096 /* Probably way too much, but it must fit every possible request. */
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#define MAXSOCKETS 128 /* Overkill... */
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/* flags */
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#define INDIRECTDATA 0x0001 /* Used to indicate that this host has to be reached indirect */
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#define EXPORTINDIRECTDATA 0x0002 /* Used to indicate uplink that it has to tell others to do INDIRECTDATA */
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#define TCPONLY 0x0004 /* Tells sender to send packets over TCP instead of UDP (for firewalls) */
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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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{
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unsigned char x[6];
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} mac_t;
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typedef unsigned long ipv4_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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} ipv4_t;
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typedef ipv4_t ip_t; /* alias for 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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@ -69,37 +68,25 @@ 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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} sockaddr_t;
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#ifdef SA_LEN
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#define SALEN(s) SA_LEN(&s)
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#else
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#define SALEN(s) (s.sa_family==AF_INET?sizeof(struct sockaddr_in):sizeof(struct sockaddr_in6))
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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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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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} vpn_packet_t;
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typedef struct passphrase_t {
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unsigned short len;
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unsigned char *phrase;
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} passphrase_t;
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typedef struct status_bits_t {
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int pinged:1; /* sent ping */
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int got_pong:1; /* received pong */
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int meta:1; /* meta connection exists */
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int active:1; /* 1 if active.. */
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int outgoing:1; /* I myself asked for this conn */
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int termreq:1; /* the termination of this connection was requested */
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int remove:1; /* Set to 1 if you want this connection removed */
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int timeout:1; /* 1 if gotten timeout */
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int validkey:1; /* 1 if we currently have a valid key for him */
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int waitingforkey:1; /* 1 if we already sent out a request */
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int dataopen:1; /* 1 if we have a valid UDP connection open */
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int encryptout:1; /* 1 if we can encrypt outgoing traffic */
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int decryptin:1; /* 1 if we have to decrypt incoming traffic */
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int unused:18;
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} status_bits_t;
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typedef struct option_bits_t {
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int unused:32;
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} option_bits_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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@ -111,36 +98,56 @@ typedef struct packet_queue_t {
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queue_element_t *tail;
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} packet_queue_t;
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typedef struct enc_key_t {
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int length;
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char *key;
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time_t expiry;
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} enc_key_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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extern int tap_fd;
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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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} listen_socket_t;
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extern int total_tap_in;
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extern int total_tap_out;
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extern int total_socket_in;
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extern int total_socket_out;
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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 *unknown;
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extern char *request_name[];
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extern char *status_text[];
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extern char *request_name[256];
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extern char *status_text[10];
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#include "connection.h" /* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */
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#include "connlist.h" /* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */
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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 char *myport;
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extern time_t now;
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extern int str2opt(const char *);
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extern char *opt2str(int);
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extern int send_packet(ip_t, vpn_packet_t *);
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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 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 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 int setup_vpn_connection(conn_list_t *);
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extern void terminate_connection(conn_list_t *);
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extern void flush_queues(conn_list_t *);
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extern int xrecv(vpn_packet_t *);
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extern void add_queue(packet_queue_t **, void *, size_t);
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extern void terminate_connection(connection_t *, int);
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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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#endif /* __TINC_NET_H__ */
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