-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 (*request_handlers[])(connection_t *);
+
+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__ */