X-Git-Url: https://www.tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fprotocol.h;h=42981ccaa9e4b807104f308d094167ff916721e8;hb=refs%2Fheads%2F1.1;hp=41f74ab4bcd5f736df1641cac6a12410f390d2f3;hpb=153abaa4d940bf2bc9bd7275d5efe5c01c354190;p=tinc diff --git a/src/protocol.h b/src/protocol.h index 41f74ab4..ced6554f 100644 --- a/src/protocol.h +++ b/src/protocol.h @@ -1,7 +1,10 @@ +#ifndef TINC_PROTOCOL_H +#define TINC_PROTOCOL_H + /* protocol.h -- header for protocol.c Copyright (C) 1999-2005 Ivo Timmermans, - 2000-2009 Guus Sliepen + 2000-2017 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 @@ -18,13 +21,15 @@ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#ifndef __TINC_PROTOCOL_H__ -#define __TINC_PROTOCOL_H__ +#include "ecdsa.h" +#include "connection.h" /* Protocol version. Different major versions are incompatible. */ #define PROT_MAJOR 17 -#define PROT_MINOR 2 /* Should not exceed 255! */ +#define PROT_MINOR 7 + +STATIC_ASSERT(PROT_MINOR <= 255, "PROT_MINOR must not exceed 255"); /* Silly Windows */ @@ -35,7 +40,7 @@ /* Request numbers */ typedef enum request_t { - ALL = -1, /* Guardian for allow_request */ + ALL = -1, /* Guardian for allow_request */ ID = 0, METAKEY, CHALLENGE, CHAL_REPLY, ACK, STATUS, ERROR, TERMREQ, PING, PONG, @@ -46,19 +51,30 @@ typedef enum request_t { /* Tinc 1.1 requests */ CONTROL, REQ_PUBKEY, ANS_PUBKEY, - REQ_SPTPS, - LAST /* Guardian for the highest request number */ + SPTPS_PACKET, + UDP_INFO, MTU_INFO, + LAST /* Guardian for the highest request number */ } request_t; +typedef bool (request_handler_t)(connection_t *c, const char *request); + typedef struct past_request_t { const char *request; time_t firstseen; } past_request_t; +typedef struct { + request_handler_t *const handler; + const char *name; +} request_entry_t; + extern bool tunnelserver; extern bool strictsubnets; extern bool experimental; +extern int invitation_lifetime; +extern ecdsa_t *invitation_key; + /* 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. @@ -74,57 +90,58 @@ extern bool experimental; /* Basic functions */ -extern bool send_request(struct connection_t *, const char *, ...) __attribute__ ((__format__(printf, 2, 3))); -extern void forward_request(struct connection_t *, const char *); -extern bool receive_request(struct connection_t *, const char *); -extern bool check_id(const char *); +extern bool send_request(struct connection_t *c, const char *format, ...) ATTR_FORMAT(printf, 2, 3); +extern void forward_request(struct connection_t *c, const char *request); +extern bool receive_request(struct connection_t *c, const char *request); -extern void init_requests(void); extern void exit_requests(void); -extern bool seen_request(const char *); +extern bool seen_request(const char *request); + +extern const request_entry_t *get_request_entry(request_t req); /* Requests */ -extern bool send_id(struct connection_t *); -extern bool send_metakey(struct connection_t *); -extern bool send_metakey_ec(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 bool send_id(struct connection_t *c); +extern bool send_metakey(struct connection_t *c); +extern bool send_challenge(struct connection_t *c); +extern bool send_chal_reply(struct connection_t *c); +extern bool send_ack(struct connection_t *c); +extern bool send_termreq(struct connection_t *c); +extern bool send_ping(struct connection_t *c); +extern bool send_pong(struct connection_t *c); +extern bool send_add_subnet(struct connection_t *c, const struct subnet_t *subnet); +extern bool send_del_subnet(struct connection_t *c, const struct subnet_t *subnet); +extern bool send_add_edge(struct connection_t *c, const struct edge_t *e); +extern bool send_del_edge(struct connection_t *c, const struct edge_t *e); 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 *); +extern bool send_req_key(struct node_t *to); +extern bool send_ans_key(struct node_t *to); +extern bool send_tcppacket(struct connection_t *c, const struct vpn_packet_t *packet); +extern bool send_sptps_tcppacket(struct connection_t *c, const void *packet, size_t len); +extern bool send_udp_info(struct node_t *from, struct node_t *to); +extern bool send_mtu_info(struct node_t *from, struct node_t *to, int mtu); /* Request handlers */ -extern bool id_h(struct connection_t *, const char *); -extern bool metakey_h(struct connection_t *, const char *); -extern bool challenge_h(struct connection_t *, const char *); -extern bool chal_reply_h(struct connection_t *, const char *); -extern bool ack_h(struct connection_t *, const char *); -extern bool status_h(struct connection_t *, const char *); -extern bool error_h(struct connection_t *, const char *); -extern bool termreq_h(struct connection_t *, const char *); -extern bool ping_h(struct connection_t *, const char *); -extern bool pong_h(struct connection_t *, const char *); -extern bool add_subnet_h(struct connection_t *, const char *); -extern bool del_subnet_h(struct connection_t *, const char *); -extern bool add_edge_h(struct connection_t *, const char *); -extern bool del_edge_h(struct connection_t *, const char *); -extern bool key_changed_h(struct connection_t *, const char *); -extern bool req_key_h(struct connection_t *, const char *); -extern bool ans_key_h(struct connection_t *, const char *); -extern bool tcppacket_h(struct connection_t *, const char *); -extern bool control_h(struct connection_t *, const char *); - -#endif /* __TINC_PROTOCOL_H__ */ +extern request_handler_t id_h; +extern request_handler_t metakey_h; +extern request_handler_t challenge_h; +extern request_handler_t chal_reply_h; +extern request_handler_t ack_h; +extern request_handler_t termreq_h; +extern request_handler_t ping_h; +extern request_handler_t pong_h; +extern request_handler_t add_subnet_h; +extern request_handler_t del_subnet_h; +extern request_handler_t add_edge_h; +extern request_handler_t del_edge_h; +extern request_handler_t key_changed_h; +extern request_handler_t req_key_h; +extern request_handler_t ans_key_h; +extern request_handler_t tcppacket_h; +extern request_handler_t sptps_tcppacket_h; +extern request_handler_t control_h; +extern request_handler_t udp_info_h; +extern request_handler_t mtu_info_h; + +#endif