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- /*
- protocol.h -- header for protocol.c
- Copyright (C) 1999-2001 Ivo Timmermans <itimmermans@bigfoot.com>,
- 2000,2001 Guus Sliepen <guus@sliepen.warande.net>
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- 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: protocol.h,v 1.5.4.25 2002/02/10 21:57:54 guus Exp $
- */
- #ifndef __TINC_PROTOCOL_H__
- #define __TINC_PROTOCOL_H__
- #include "net.h"
- #include "node.h"
- #include "subnet.h"
- /* Protocol version. Different versions are incompatible,
- incompatible version have different protocols.
- */
- #define PROT_CURRENT 12
- /* Request numbers */
- enum {
- ALL = -1, /* Guardian for allow_request */
- ID = 0, METAKEY, CHALLENGE, CHAL_REPLY, ACK,
- STATUS, ERROR, TERMREQ,
- PING, PONG,
- // ADD_NODE, DEL_NODE,
- ADD_SUBNET, DEL_SUBNET,
- ADD_EDGE, DEL_EDGE,
- KEY_CHANGED, REQ_KEY, ANS_KEY,
- PACKET,
- LAST /* Guardian for the highest request number */
- };
- /* Maximum size of strings in a request */
- #define MAX_STRING_SIZE 1024
- #define MAX_STRING "%1024s"
- /* Basic functions */
- extern int send_request(connection_t*, const char*, ...);
- extern int receive_request(connection_t *);
- extern int check_id(char *);
- /* Requests */
- extern int send_id(connection_t *);
- extern int send_metakey(connection_t *);
- extern int send_challenge(connection_t *);
- extern int send_chal_reply(connection_t *);
- extern int send_ack(connection_t *);
- extern int send_status(connection_t *, int, char *);
- extern int send_error(connection_t *, int, char *);
- extern int send_termreq(connection_t *);
- extern int send_ping(connection_t *);
- extern int send_pong(connection_t *);
- // extern int send_add_node(connection_t *, node_t *);
- // extern int send_del_node(connection_t *, node_t *);
- extern int send_add_subnet(connection_t *, subnet_t *);
- extern int send_del_subnet(connection_t *, subnet_t *);
- extern int send_add_edge(connection_t *, edge_t *);
- extern int send_del_edge(connection_t *, edge_t *);
- extern int send_key_changed(connection_t *, node_t *);
- extern int send_req_key(connection_t *, node_t *, node_t *);
- extern int send_ans_key(connection_t *, node_t *, node_t *);
- extern int send_tcppacket(connection_t *, vpn_packet_t *);
- /* Request handlers */
- extern int (*request_handlers[])(connection_t *);
- extern int id_h(connection_t *);
- extern int metakey_h(connection_t *);
- extern int challenge_h(connection_t *);
- extern int chal_reply_h(connection_t *);
- extern int ack_h(connection_t *);
- extern int status_h(connection_t *);
- extern int error_h(connection_t *);
- extern int termreq_h(connection_t *);
- extern int ping_h(connection_t *);
- extern int pong_h(connection_t *);
- // extern int add_node_h(connection_t *);
- // extern int del_node_h(connection_t *);
- extern int add_subnet_h(connection_t *);
- extern int del_subnet_h(connection_t *);
- extern int add_edge_h(connection_t *);
- extern int del_edge_h(connection_t *);
- extern int key_changed_h(connection_t *);
- extern int req_key_h(connection_t *);
- extern int ans_key_h(connection_t *);
- extern int tcppacket_h(connection_t *);
- #endif /* __TINC_PROTOCOL_H__ */
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