X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fprotocol.h;h=ced6554f6a3130852f15fd7c1e5fe60f91aa28c6;hb=c45a3fd7319d03bd147448a017f5aaed3b46fdfe;hp=c0e6f4fa61b3d8ebc379420d1cad0220549c7592;hpb=5822f817aa802c2c5a83e9d99a8ae78cb822799b;p=tinc

diff --git a/src/protocol.h b/src/protocol.h
index c0e6f4fa..ced6554f 100644
--- a/src/protocol.h
+++ b/src/protocol.h
@@ -22,11 +22,14 @@
 */
 
 #include "ecdsa.h"
+#include "connection.h"
 
 /* Protocol version. Different major versions are incompatible. */
 
 #define PROT_MAJOR 17
-#define PROT_MINOR 7 /* Should not exceed 255! */
+#define PROT_MINOR 7
+
+STATIC_ASSERT(PROT_MINOR <= 255, "PROT_MINOR must not exceed 255");
 
 /* Silly Windows */
 
@@ -53,11 +56,18 @@ typedef enum request_t {
 	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;
@@ -80,62 +90,58 @@ extern ecdsa_t *invitation_key;
 
 /* 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 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_sptps_tcppacket(struct connection_t *, const char*, int);
-extern bool send_udp_info(struct node_t *, struct node_t *);
-extern bool send_mtu_info(struct node_t *, struct node_t *, int);
+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 sptps_tcppacket_h(struct connection_t *, const char *);
-extern bool control_h(struct connection_t *, const char *);
-extern bool udp_info_h(struct connection_t *, const char *);
-extern bool mtu_info_h(struct connection_t *, const char *);
+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