X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fprotocol.h;h=6c46c726055605a191891197441c361a51b2c7d4;hp=91c0cfba4ec8a15c01f8e4f1b810cc04bf5554f7;hb=b403f77dd84b7cae86bdaaf4961af515cf7a3fb9;hpb=b7d4d4c17712e0bb9ee8bd497a2f525b79d5f40d diff --git a/src/protocol.h b/src/protocol.h index 91c0cfba..6c46c726 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) 1999-2005 Ivo Timmermans, + 2000-2009 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 @@ -13,61 +13,113 @@ 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 1.5.4.14 2000/10/29 22:55:15 guus Exp $ + 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., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef __TINC_PROTOCOL_H__ #define __TINC_PROTOCOL_H__ -#include "net.h" -#include "subnet.h" - /* Protocol version. Different versions are incompatible, incompatible version have different protocols. */ -#define PROT_CURRENT 8 +#define PROT_CURRENT 17 + +/* Silly Windows */ + +#ifdef ERROR +#undef ERROR +#endif /* Request numbers */ -enum { - ALL = -1, /* Guardian for allow_request */ - ID = 0, CHALLENGE, CHAL_REPLY, METAKEY, 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 */ -}; - -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*); -extern int send_metakey(conn_list_t*); -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*, subnet_t*); -extern int send_del_subnet(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 enum request_t { + 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 */ +} request_t; + +typedef struct past_request_t { + char *request; + time_t firstseen; +} past_request_t; + +extern bool tunnelserver; +extern bool strictsubnets; + +/* Maximum size of strings in a request. + * scanf terminates %2048s with a NUL character, + * but the NUL character can be written after the 2048th non-NUL character. + */ + +#define MAX_STRING_SIZE 2049 +#define MAX_STRING "%2048s" + +#include "edge.h" +#include "net.h" +#include "node.h" +#include "subnet.h" + +/* Basic functions */ + +extern bool send_request(struct connection_t *, const char *, ...) __attribute__ ((__format__(printf, 2, 3))); +extern void forward_request(struct connection_t *); +extern bool receive_request(struct connection_t *); +extern bool check_id(const char *); + +extern void init_requests(void); +extern void exit_requests(void); +extern bool seen_request(char *); +extern void age_past_requests(void); + +/* Requests */ + +extern bool send_id(struct connection_t *); +extern bool send_metakey(struct connection_t *); +extern bool send_challenge(struct connection_t *); +extern bool send_chal_reply(struct connection_t *); +extern bool send_ack(struct connection_t *); +extern bool send_status(struct connection_t *, int, const char *); +extern bool send_error(struct connection_t *, int,const char *); +extern bool send_termreq(struct connection_t *); +extern bool send_ping(struct connection_t *); +extern bool send_pong(struct connection_t *); +extern bool send_add_subnet(struct connection_t *, const struct subnet_t *); +extern bool send_del_subnet(struct connection_t *, const struct subnet_t *); +extern bool send_add_edge(struct connection_t *, const struct edge_t *); +extern bool send_del_edge(struct connection_t *, const struct edge_t *); +extern void send_key_changed(void); +extern bool send_req_key(struct node_t *); +extern bool send_ans_key(struct node_t *); +extern bool send_tcppacket(struct connection_t *, const struct vpn_packet_t *); + +/* Request handlers */ + +extern bool id_h(struct connection_t *); +extern bool metakey_h(struct connection_t *); +extern bool challenge_h(struct connection_t *); +extern bool chal_reply_h(struct connection_t *); +extern bool ack_h(struct connection_t *); +extern bool status_h(struct connection_t *); +extern bool error_h(struct connection_t *); +extern bool termreq_h(struct connection_t *); +extern bool ping_h(struct connection_t *); +extern bool pong_h(struct connection_t *); +extern bool add_subnet_h(struct connection_t *); +extern bool del_subnet_h(struct connection_t *); +extern bool add_edge_h(struct connection_t *); +extern bool del_edge_h(struct connection_t *); +extern bool key_changed_h(struct connection_t *); +extern bool req_key_h(struct connection_t *); +extern bool ans_key_h(struct connection_t *); +extern bool tcppacket_h(struct connection_t *); + +#endif /* __TINC_PROTOCOL_H__ */