2 protocol.h -- header for protocol.c
3 Copyright (C) 1999,2000 Ivo Timmermans <itimmermans@bigfoot.com>,
4 2000 Guus Sliepen <guus@sliepen.warande.net>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 $Id: protocol.h,v 1.5.4.6 2000/09/10 21:57:11 zarq Exp $
23 #ifndef __TINC_PROTOCOL_H__
24 #define __TINC_PROTOCOL_H__
29 PROT_RESERVED = 0, /* reserved: do not use. */
36 PROT_CURRENT, /* protocol currently in use */
40 ACK = 1, /* acknowledged */
41 /* These requests are obsolete.
50 TERMREQ = 30, /* terminate connection */
51 PINGTIMEOUT, /* terminate due to ping t.o. */
52 DEL_HOST, /* forward a termreq to others */
55 ADD_HOST = 60, /* Add new given host to connection list */
56 BASIC_INFO, /* some basic info follows */
57 PASSPHRASE, /* encrypted passphrase */
58 PUBLIC_KEY, /* public key in base-36 */
59 HOLD = 80, /* don't send any data */
60 RESUME, /* resume dataflow with new encryption key */
61 CALCULATE = 100, /* calculate the following numer^privkey and send me the result */
62 CALC_RES, /* result of the above */
63 ALMOST_KEY, /* this number^privkey is the shared key */
64 PACKET = 110, /* TCP tunneled network packet */
65 REQ_KEY = 160, /* request public key */
66 ANS_KEY, /* answer to such request */
67 KEY_CHANGED, /* public key has changed */
71 extern int (*request_handlers[256])(conn_list_t*);
73 extern int send_ping(conn_list_t*);
74 extern int send_basic_info(conn_list_t *);
75 extern int send_termreq(conn_list_t *);
76 extern int send_timeout(conn_list_t *);
77 extern int send_key_request(ip_t);
78 extern void send_key_changed_all(void);
79 extern int send_del_host(conn_list_t *, conn_list_t *);
80 extern int send_tcppacket(conn_list_t *, void *, int);
81 extern int notify_others(conn_list_t *, conn_list_t *, int (*function)(conn_list_t*, conn_list_t*));
83 #endif /* __TINC_PROTOCOL_H__ */