2 protocol.h -- header for protocol.c
3 Copyright (C) 1999,2000 Ivo Timmermans <zarq@iname.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __TINC_PROTOCOL_H__
21 #define __TINC_PROTOCOL_H__
26 PROT_RESERVED = 0, /* reserved: do not use. */
33 PROT_CURRENT, /* protocol currently in use */
37 ACK = 1, /* acknowledged */
38 AUTH_S_INIT = 10, /* initiate authentication */
40 AUTH_S_SPP, /* send passphrase */
42 AUTH_S_SKEY, /* send g^k */
44 AUTH_S_SACK, /* send ack */
45 AUTH_C_RACK, /* waiting for ack */
46 TERMREQ = 30, /* terminate connection */
47 PINGTIMEOUT, /* terminate due to ping t.o. */
48 DEL_HOST, /* forward a termreq to others */
51 ADD_HOST = 60, /* Add new given host to connection list */
52 BASIC_INFO, /* some basic info follows */
53 PASSPHRASE, /* encrypted passphrase */
54 PUBLIC_KEY, /* public key in base-36 */
55 HOLD = 80, /* don't send any data */
56 RESUME, /* resume dataflow with new encryption key */
57 CALCULATE = 100, /* calculate the following numer^privkey and send me the result */
58 CALC_RES, /* result of the above */
59 ALMOST_KEY, /* this number^privkey is the shared key */
60 REQ_KEY = 160, /* request public key */
61 ANS_KEY, /* answer to such request */
62 KEY_CHANGED, /* public key has changed */
65 extern int (*request_handlers[256])(conn_list_t*);
67 extern int send_ping(conn_list_t*);
68 extern int send_basic_info(conn_list_t *);
69 extern int send_termreq(conn_list_t *);
70 extern int send_timeout(conn_list_t *);
71 extern int send_key_request(ip_t);
72 extern void send_key_changed_all(void);
74 #endif /* __TINC_PROTOCOL_H__ */