1 files changed, 62 insertions, 0 deletions
diff --git a/src/common/include/proto/fs.h b/src/common/include/proto/fs.h
new file mode 100644
index 0000000..e70ff55
--- /dev/null
+++ b/src/common/include/proto/fs.h
@@ -0,0 +1,62 @@
+#pragma once
+
+#include <stdint.h>
+#include <stddef.h>
+
+typedef int fd_t;
+
+#define FT_REGULAR      0 		// no flags = regular file
+#define FT_DIR 			(0x01)
+#define FT_DEV 			(0x02)
+#define FT_BLOCKDEV 	(0x04)
+#define FT_CHARDEV 		(0x08)
+#define FT_CHANNEL 		(0x10)		// dual-pipe
+#define FT_FRAMEBUFFER	(0x20)
+
+// FM_* enum describes modes for opening a file as well as authorized operations in stat_t
+// (some flags are used only for open() or only in stat_t.access)
+#define FM_READ 	(0x01)
+#define FM_WRITE 	(0x02)
+#define FM_READDIR 	(0x04)
+#define FM_MMAP 	(0x08)
+#define FM_CREATE   (0x10)
+#define FM_TRUNC    (0x20)
+#define FM_APPEND   (0x40)
+#define FM_IOCTL	(0x100)
+#define FM_BLOCKING	(0x200)
+#define FM_DCREATE	(0x1000)		// create file in directory
+#define FM_DMOVE	(0x2000)		// move file from directory
+#define FM_DDELETE	(0x4000)		// delete file from directory
+
+#define FM_ALL_MODES (0xFFFF)
+
+
+typedef struct {
+	int type;
+	int access;
+	size_t size;
+	// TODO : times & more metadata
+} stat_t;
+
+#define DIR_MAX 	128 	// maximum length for a filename
+
+typedef struct {
+	char name[DIR_MAX];
+	stat_t st;
+} dirent_t;
+
+
+#define IOCTL_BLOCKDEV_GET_BLOCK_SIZE   40
+#define IOCTL_BLOCKDEV_GET_BLOCK_COUNT  41
+
+
+#define SEL_READ	0x01
+#define	SEL_WRITE	0x02
+#define SEL_ERROR	0x04
+
+typedef struct {
+	fd_t fd;
+	uint16_t req_flags, got_flags;		// rq_flags : what caller is interested in
+} sel_fd_t;
+
+/* vim: set ts=4 sw=4 tw=0 noet :*/