X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fnet.h;h=8d416ec2a5f314985e819aea7fe64ad7b7e20e53;hp=8e067475f2c09e44eff3f138e944522a10202c6f;hb=950fb8e916b0e248dcaa72c96859acd6046683aa;hpb=ee96ccabbbf0180d5631d3c22838456f28ee9c15 diff --git a/src/net.h b/src/net.h index 8e067475..8d416ec2 100644 --- a/src/net.h +++ b/src/net.h @@ -15,6 +15,8 @@ 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 1.9.4.14 2000/10/11 10:35:16 guus Exp $ */ #ifndef __TINC_NET_H__ @@ -24,6 +26,7 @@ #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 @@ -45,7 +48,27 @@ #define MAXBUFSIZE 2048 /* Probably way too much, but it must fit every possible request. */ -typedef unsigned long ip_t; +/* 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]; +} mac_t; + +typedef unsigned long ipv4_t; + +typedef ipv4_t ip_t; /* alias for ipv4_t */ + +typedef struct ipv6_t +{ + unsigned short x[8]; +} ipv6_t; + +typedef unsigned short port_t; + typedef short length_t; typedef struct vpn_packet_t { @@ -53,12 +76,6 @@ typedef struct vpn_packet_t { unsigned char data[MAXSIZE]; } vpn_packet_t; -typedef struct real_packet_t { - length_t len; /* the length of the entire packet */ - ip_t from; /* where the packet came from */ - vpn_packet_t data; /* encrypted vpn_packet_t */ -} real_packet_t; - typedef struct passphrase_t { unsigned short len; unsigned char *phrase; @@ -76,9 +93,15 @@ typedef struct status_bits_t { 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 unused:22; + 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; @@ -96,29 +119,6 @@ typedef struct enc_key_t { time_t expiry; } enc_key_t; -typedef struct conn_list_t { - ip_t vpn_ip; /* his vpn ip */ - ip_t vpn_mask; /* his vpn network address */ - ip_t real_ip; /* his real (internet) ip */ - char *hostname; /* the hostname of its real ip */ - short unsigned int port; /* his portnumber */ - int socket; /* our udp vpn socket */ - int meta_socket; /* our tcp meta socket */ - int protocol_version; /* used protocol */ - status_bits_t status; /* status info */ - passphrase_t *pp; /* encoded passphrase */ - packet_queue_t *sq; /* pending outgoing packets */ - packet_queue_t *rq; /* pending incoming packets (they have no - valid key to be decrypted with) */ - enc_key_t *public_key; /* the other party's public key */ - enc_key_t *key; /* encrypt with this key */ - char buffer[MAXBUFSIZE+1]; /* metadata input buffer */ - int buflen; /* bytes read into buffer */ - int reqlen; /* length of first request in buffer */ - struct conn_list_t *nexthop; /* nearest meta-hop in this direction */ - struct conn_list_t *next; /* after all, it's a list of connections */ -} conn_list_t; - extern int tap_fd; extern int total_tap_in; @@ -126,9 +126,11 @@ extern int total_tap_out; extern int total_socket_in; extern int total_socket_out; -extern conn_list_t *conn_list; -extern conn_list_t *myself; +extern char *request_name[256]; +extern char *status_text[10]; +extern int str2opt(const char *); +extern char *opt2str(int); extern int send_packet(ip_t, vpn_packet_t *); extern int setup_network_connections(void); extern void close_network_connections(void); @@ -136,5 +138,7 @@ 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); #endif /* __TINC_NET_H__ */