+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