121 lines
3.8 KiB
C
121 lines
3.8 KiB
C
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/*
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protocol.h -- header for protocol.c
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Copyright (C) 1999-2001 Ivo Timmermans <itimmermans@bigfoot.com>,
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2000,2001 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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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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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: protocol.h,v 1.5.4.29 2002/03/22 11:43:48 guus Exp $
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*/
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#ifndef __TINC_PROTOCOL_H__
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#define __TINC_PROTOCOL_H__
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#include "net.h"
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#include "node.h"
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#include "subnet.h"
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/* Protocol version. Different versions are incompatible,
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incompatible version have different protocols.
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*/
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#define PROT_CURRENT 14
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/* Request numbers */
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enum {
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ALL = -1, /* Guardian for allow_request */
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ID = 0, METAKEY, CHALLENGE, CHAL_REPLY, ACK,
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STATUS, ERROR, TERMREQ,
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PING, PONG,
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// ADD_NODE, DEL_NODE,
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ADD_SUBNET, DEL_SUBNET,
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ADD_EDGE, DEL_EDGE,
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KEY_CHANGED, REQ_KEY, ANS_KEY,
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PACKET,
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LAST /* Guardian for the highest request number */
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};
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typedef struct past_request_t {
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char *request;
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time_t firstseen;
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} past_request_t;
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/* Maximum size of strings in a request */
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#define MAX_STRING_SIZE 2048
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#define MAX_STRING "%2048s"
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/* Basic functions */
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extern int send_request(connection_t*, const char*, ...);
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extern int receive_request(connection_t *);
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extern int check_id(char *);
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extern void init_requests(void);
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extern void exit_requests(void);
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extern int seen_request(char *);
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extern void age_past_requests(void);
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/* Requests */
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extern int send_id(connection_t *);
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extern int send_metakey(connection_t *);
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extern int send_challenge(connection_t *);
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extern int send_chal_reply(connection_t *);
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extern int send_ack(connection_t *);
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extern int send_status(connection_t *, int, char *);
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extern int send_error(connection_t *, int, char *);
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extern int send_termreq(connection_t *);
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extern int send_ping(connection_t *);
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extern int send_pong(connection_t *);
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// extern int send_add_node(connection_t *, node_t *);
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// extern int send_del_node(connection_t *, node_t *);
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extern int send_add_subnet(connection_t *, subnet_t *);
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extern int send_del_subnet(connection_t *, subnet_t *);
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extern int send_add_edge(connection_t *, edge_t *);
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extern int send_del_edge(connection_t *, edge_t *);
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extern int send_key_changed(connection_t *, node_t *);
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extern int send_req_key(connection_t *, node_t *, node_t *);
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extern int send_ans_key(connection_t *, node_t *, node_t *);
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extern int send_tcppacket(connection_t *, vpn_packet_t *);
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/* Request handlers */
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extern int (*request_handlers[])(connection_t *);
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extern int id_h(connection_t *);
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extern int metakey_h(connection_t *);
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extern int challenge_h(connection_t *);
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extern int chal_reply_h(connection_t *);
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extern int ack_h(connection_t *);
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extern int status_h(connection_t *);
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extern int error_h(connection_t *);
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extern int termreq_h(connection_t *);
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extern int ping_h(connection_t *);
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extern int pong_h(connection_t *);
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// extern int add_node_h(connection_t *);
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// extern int del_node_h(connection_t *);
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extern int add_subnet_h(connection_t *);
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extern int del_subnet_h(connection_t *);
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extern int add_edge_h(connection_t *);
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extern int del_edge_h(connection_t *);
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extern int key_changed_h(connection_t *);
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extern int req_key_h(connection_t *);
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extern int ans_key_h(connection_t *);
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extern int tcppacket_h(connection_t *);
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#endif /* __TINC_PROTOCOL_H__ */
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