X-Git-Url: http://git.meshlink.io/?p=meshlink;a=blobdiff_plain;f=src%2Fprotocol.h;h=f97682a1717af4277fc460f01f31b88fd8d8a562;hp=c202f5c2f0363791c343121dd513efa56ab014fe;hb=963c5055505f2fc117cd5efa06eaa02c9b2bf85d;hpb=58893f0875369aafff8481825af271683c975a2a diff --git a/src/protocol.h b/src/protocol.h index c202f5c2..f97682a1 100644 --- a/src/protocol.h +++ b/src/protocol.h @@ -1,7 +1,9 @@ +#ifndef MESHLINK_PROTOCOL_H +#define MESHLINK_PROTOCOL_H + /* protocol.h -- header for protocol.c - Copyright (C) 1999-2001 Ivo Timmermans , - 2000,2001 Guus Sliepen + Copyright (C) 2014, 2017 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 @@ -13,68 +15,94 @@ 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 1.5.4.21 2001/05/24 21:30:36 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 "ecdsa.h" -#include "net.h" -#include "subnet.h" +/* Protocol version. Different major versions are incompatible. */ -/* Protocol version. Different versions are incompatible, - incompatible version have different protocols. - */ +#define PROT_MAJOR 17 +#define PROT_MINOR 3 /* Should not exceed 255! */ + +/* Silly Windows */ -#define PROT_CURRENT 10 +#ifdef ERROR +#undef ERROR +#endif /* Request numbers */ -enum { - ALL = -1, /* Guardian for allow_request */ - ID = 0, METAKEY, CHALLENGE, CHAL_REPLY, - STATUS, ERROR, TERMREQ, - PING, PONG, - ADD_HOST, DEL_HOST, - ADD_SUBNET, DEL_SUBNET, - 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" - -extern int (*request_handlers[])(connection_t*); - -extern int send_id(connection_t*); -extern int send_challenge(connection_t*); -extern int send_chal_reply(connection_t*); -extern int send_metakey(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_host(connection_t*, connection_t*); -extern int send_del_host(connection_t*, connection_t*); -extern int send_add_subnet(connection_t*, subnet_t*); -extern int send_del_subnet(connection_t*, subnet_t*); -extern int send_key_changed(connection_t*, connection_t*); -extern int send_req_key(connection_t*, connection_t*); -extern int send_ans_key(connection_t*, connection_t*, char*); -extern int send_tcppacket(connection_t *, vpn_packet_t *); - -/* Old functions */ - -extern int notify_others(connection_t *, connection_t *, int (*function)(connection_t*, connection_t*)); -extern int receive_request(connection_t *); -extern int check_id(char *); - -#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, + /* Tinc 1.1 requests */ + CONTROL, + REQ_PUBKEY, ANS_PUBKEY, + REQ_SPTPS, + LAST /* Guardian for the highest request number */ +} request_t; + +typedef struct past_request_t { + const char *request; + time_t firstseen; +} past_request_t; + +/* 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" + +/* Basic functions */ + +extern bool send_request(struct meshlink_handle *mesh, struct connection_t *, struct submesh_t *s, const char *, ...) __attribute__((__format__(printf, 4, 5))); +extern void forward_request(struct meshlink_handle *mesh, struct connection_t *, struct submesh_t *, const char *); +extern bool receive_request(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool check_id(const char *); + +extern void init_requests(struct meshlink_handle *mesh); +extern void exit_requests(struct meshlink_handle *mesh); +extern bool seen_request(struct meshlink_handle *mesh, const char *); + +/* Requests */ + +extern bool send_id(struct meshlink_handle *mesh, struct connection_t *); +extern bool send_ack(struct meshlink_handle *mesh, struct connection_t *); +extern bool send_ping(struct meshlink_handle *mesh, struct connection_t *); +extern bool send_pong(struct meshlink_handle *mesh, struct connection_t *); +extern bool send_add_edge(struct meshlink_handle *mesh, struct connection_t *, const struct edge_t *, int contradictions); +extern bool send_del_edge(struct meshlink_handle *mesh, struct connection_t *, const struct edge_t *, int contradictions); +extern bool send_req_key(struct meshlink_handle *mesh, struct node_t *); + +/* Request handlers */ + +extern bool id_h(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool ack_h(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool status_h(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool error_h(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool termreq_h(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool ping_h(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool pong_h(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool add_edge_h(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool del_edge_h(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool key_changed_h(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool req_key_h(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool ans_key_h(struct meshlink_handle *mesh, struct connection_t *, const char *); +extern bool tcppacket_h(struct meshlink_handle *mesh, struct connection_t *, const char *); + +#endif