Initial implementation of seatd and libseat

include/protocol.h

@@ -0,0 +1,64 @@
+#ifndef _SEATD_CONSTANTS_H
+#define _SEATD_CONSTANTS_H
+
+#define MAX_PATH_LEN	 256
+#define MAX_SEAT_LEN	 64
+#define MAX_SEAT_DEVICES 128
+#define MAX_SESSION_LEN	 64
+
+#define CLIENT_EVENT(opcode) (opcode)
+#define SERVER_EVENT(opcode) ((opcode) + (1 << 15))
+
+#define CLIENT_OPEN_SEAT      CLIENT_EVENT(1)
+#define CLIENT_CLOSE_SEAT     CLIENT_EVENT(2)
+#define CLIENT_OPEN_DEVICE    CLIENT_EVENT(3)
+#define CLIENT_CLOSE_DEVICE   CLIENT_EVENT(4)
+#define CLIENT_DISABLE_SEAT   CLIENT_EVENT(5)
+#define CLIENT_SWITCH_SESSION CLIENT_EVENT(6)
+
+#define SERVER_SEAT_OPENED   SERVER_EVENT(1)
+#define SERVER_SEAT_CLOSED   SERVER_EVENT(2)
+#define SERVER_DEVICE_OPENED SERVER_EVENT(3)
+#define SERVER_DEVICE_CLOSED SERVER_EVENT(4)
+#define SERVER_DISABLE_SEAT  SERVER_EVENT(5)
+#define SERVER_ENABLE_SEAT   SERVER_EVENT(6)
+#define SERVER_ERROR	     SERVER_EVENT(0x7FFF)
+
+#include <stdint.h>
+
+struct proto_header {
+	uint16_t opcode;
+	uint16_t size;
+};
+
+struct proto_client_open_device {
+	uint16_t path_len;
+	// NULL-terminated byte-sequence path_len long follows
+};
+
+struct proto_client_close_device {
+	int device_id;
+};
+
+struct proto_client_switch_session {
+	int session;
+};
+
+struct proto_server_seat_opened {
+	uint16_t seat_name_len;
+	// NULL-terminated byte-sequence seat_name_len long follows
+};
+
+struct proto_server_device_opened {
+	int device_id;
+};
+
+struct proto_server_device_closed {
+	int device_id;
+};
+
+struct proto_server_error {
+	int error_code;
+};
+
+#endif