X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fprotocol.h;h=6e71f810e5b82f5573d2b7f79b3178acee435332;hp=f3119aa8b9fb0ac279afef5aa36ee99e81782ab9;hb=1401faf608e1c8af0d0754e545b0ec79d2bd5d93;hpb=9c75350ac6c14886195b6d368af2f118fd5d60e0 diff --git a/src/protocol.h b/src/protocol.h index f3119aa8..6e71f810 100644 --- a/src/protocol.h +++ b/src/protocol.h @@ -1,7 +1,7 @@ /* protocol.h -- header for protocol.c - Copyright (C) 1999,2000 Ivo Timmermans , - 2000 Guus Sliepen + Copyright (C) 1999-2001 Ivo Timmermans , + 2000,2001 Guus Sliepen 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 @@ -17,67 +17,99 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id: protocol.h,v 1.5.4.7 2000/09/11 10:05:35 guus Exp $ + $Id: protocol.h,v 1.5.4.38 2003/07/06 23:16:28 guus Exp $ */ #ifndef __TINC_PROTOCOL_H__ #define __TINC_PROTOCOL_H__ #include "net.h" +#include "node.h" +#include "edge.h" +#include "subnet.h" /* Protocol version. Different versions are incompatible, incompatible version have different protocols. */ -enum { - PROT_RESERVED = 0, /* reserved: do not use. */ - PROT_NOT_IN_USE, - PROT_TOO_OLD = 2, - PROT_3, - PROT_4, - PROT_ECHELON, - PROT_6, - PROT_7, - PROT_CURRENT, /* protocol currently in use */ -}; +#define PROT_CURRENT 17 /* Request numbers */ enum { - ALL = -1, /* Guardian for allow_request */ - ID = 0, CHALLENGE, CHAL_REPLY, ACK, - STATUS, ERROR, TERMREQ, - PING, PONG, - ADD_HOST, DEL_HOST, - ADD_SUBNET, DEL_SUBNET, - KEY_CHANGED, REQ_KEY, ANS_KEY, - LAST /* Guardian for the highest request number */ + ALL = -1, /* Guardian for allow_request */ + ID = 0, METAKEY, CHALLENGE, CHAL_REPLY, ACK, + STATUS, ERROR, TERMREQ, + PING, PONG, + ADD_SUBNET, DEL_SUBNET, + ADD_EDGE, DEL_EDGE, + KEY_CHANGED, REQ_KEY, ANS_KEY, + PACKET, + LAST /* Guardian for the highest request number */ }; -extern int (*request_handlers[])(conn_list_t*); - -extern int send_id(conn_list_t*); -extern int send_challenge(conn_list_t*); -extern int send_chal_reply(conn_list_t*, char*); -extern int send_ack(conn_list_t*); -extern int send_status(conn_list_t*, int, char*); -extern int send_error(conn_list_t*, int, char*); -extern int send_termreq(conn_list_t*); -extern int send_ping(conn_list_t*); -extern int send_pong(conn_list_t*); -extern int send_add_host(conn_list_t*, conn_list_t*); -extern int send_del_host(conn_list_t*, conn_list_t*); -extern int send_add_subnet(conn_list_t*, conn_list_t*, subnet_t*); -extern int send_del_subnet(conn_list_t*, conn_list_t*, subnet_t*); -extern int send_key_changed(conn_list_t*, conn_list_t*); -extern int send_req_key(conn_list_t*, conn_list_t*); -extern int send_ans_key(conn_list_t*, conn_list_t*, char*); - -/* Old functions */ - -extern int send_tcppacket(conn_list_t *, void *, int); -extern int notify_others(conn_list_t *, conn_list_t *, int (*function)(conn_list_t*, conn_list_t*)); - -#endif /* __TINC_PROTOCOL_H__ */ - - +typedef struct past_request_t { + char *request; + time_t firstseen; +} past_request_t; + +/* Maximum size of strings in a request */ + +#define MAX_STRING_SIZE 2048 +#define MAX_STRING "%2048s" + +/* Basic functions */ + +extern int send_request(connection_t *, const char *, ...) __attribute__ ((format(printf, 2, 3))); +extern int forward_request(connection_t *); +extern int receive_request(connection_t *); +extern int check_id(char *); + +extern void init_requests(void); +extern void exit_requests(void); +extern int seen_request(char *); +extern void age_past_requests(void); + +/* 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_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 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_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__ */