- Gather drivers in a special "drivers" subdirectory.

[reactos.git] / rosapps / drivers / ramdrv / minix / minix.h

diff --git a/rosapps/drivers/ramdrv/minix/minix.h b/rosapps/drivers/ramdrv/minix/minix.h
new file mode 100644 (file)
index 0000000..5b9b478
--- /dev/null
+++ b/rosapps/drivers/ramdrv/minix/minix.h
@@ -0,0 +1,133 @@
+#include <ntddk.h>
+#include <ntifs.h>
+
+#define MINIX_ROOT_INO 1
+
+/* Not the same as the bogus LINK_MAX in <linux/limits.h>. Oh well. */
+#define MINIX_LINK_MAX 250
+
+#define MINIX_I_MAP_SLOTS      8
+#define MINIX_Z_MAP_SLOTS      64
+#define MINIX_SUPER_MAGIC      0x137F          /* original minix fs */
+#define MINIX_SUPER_MAGIC2     0x138F          /* minix fs, 30 char names */
+#define MINIX2_SUPER_MAGIC     0x2468          /* minix V2 fs */
+#define MINIX2_SUPER_MAGIC2    0x2478          /* minix V2 fs, 30 char names */
+#define MINIX_VALID_FS         0x0001          /* Clean fs. */
+#define MINIX_ERROR_FS         0x0002          /* fs has errors. */
+
+#define MINIX_INODES_PER_BLOCK ((BLOCKSIZE)/(sizeof (struct minix_inode)))
+#define MINIX2_INODES_PER_BLOCK ((BLOCKSIZE)/(sizeof (struct minix2_inode)))
+
+#define MINIX_V1               0x0001          /* original minix fs */
+#define MINIX_V2               0x0002          /* minix V2 fs */
+
+
+/*
+ * This is the original minix inode layout on disk.
+ * Note the 8-bit gid and atime and ctime.
+ */
+struct minix_inode {
+       unsigned short int i_mode;
+       unsigned short int i_uid;
+       unsigned long i_size;
+       unsigned long i_time;
+       unsigned char  i_gid;
+       unsigned char  i_nlinks;
+       unsigned short int i_zone[9];
+};
+
+/*
+ * The new minix inode has all the time entries, as well as
+ * long block numbers and a third indirect block (7+1+1+1
+ * instead of 7+1+1). Also, some previously 8-bit values are
+ * now 16-bit. The inode is now 64 bytes instead of 32.
+ */
+struct minix2_inode {
+       unsigned short int i_mode;
+       unsigned short int i_nlinks;
+       unsigned short int i_uid;
+       unsigned short int i_gid;
+       unsigned long i_size;
+       unsigned long i_atime;
+       unsigned long i_mtime;
+       unsigned long i_ctime;
+       unsigned long i_zone[10];
+};
+
+/*
+ * minix super-block data on disk
+ */
+struct minix_super_block {
+       unsigned short int s_ninodes;
+       unsigned short int s_nzones;
+       unsigned short int s_imap_blocks;
+       unsigned short int s_zmap_blocks;
+       unsigned short int s_firstdatazone;
+       unsigned short int s_log_zone_size;
+       unsigned long s_max_size;
+       unsigned short int s_magic;
+       unsigned short int s_state;
+       unsigned long s_zones;
+};
+
+struct minix_dir_entry {
+       unsigned short int inode;
+       char name[0];
+};
+#define MINIX_DIR_ENTRY_SIZE (sizeof(struct minix_dir_entry)+30)
+
+BOOLEAN MinixReadSector(IN PDEVICE_OBJECT pDeviceObject,
+                       IN ULONG        DiskSector,
+                       IN PVOID        Buffer);
+BOOLEAN MinixWriteSector(IN PDEVICE_OBJECT pDeviceObject,
+                       IN ULONG        DiskSector,
+                       IN PVOID        Buffer);
+
+#define BLOCKSIZE (1024)
+
+//extern PDRIVER_OBJECT DriverObject;
+
+typedef struct
+{
+   PDEVICE_OBJECT AttachedDevice;
+   struct minix_inode root_inode;
+   char superblock_buf[BLOCKSIZE];
+   struct minix_super_block* sb;
+   PFILE_OBJECT FileObject;
+} MINIX_DEVICE_EXTENSION, *PMINIX_DEVICE_EXTENSION;
+
+typedef struct
+{
+   struct minix_inode inode;
+} MINIX_FSCONTEXT, *PMINIX_FSCONTEXT;
+
+NTSTATUS STDCALL MinixCreate(PDEVICE_OBJECT DeviceObject, PIRP Irp);
+NTSTATUS STDCALL MinixClose(PDEVICE_OBJECT DeviceObject, PIRP Irp);
+NTSTATUS STDCALL MinixWrite(PDEVICE_OBJECT DeviceObject, PIRP Irp);
+NTSTATUS STDCALL MinixRead(PDEVICE_OBJECT DeviceObject, PIRP Irp);
+NTSTATUS STDCALL MinixDirectoryControl(PDEVICE_OBJECT DeviceObject, PIRP Irp);
+
+ULONG MinixNewInode(PDEVICE_OBJECT Volume,
+                   MINIX_DEVICE_EXTENSION* DeviceExt,
+                   struct minix_inode* new_inode);
+NTSTATUS MinixWriteInode(PDEVICE_OBJECT Volume,
+                        MINIX_DEVICE_EXTENSION* DeviceExt,
+                        ULONG ino,
+                        struct minix_inode* result);
+NTSTATUS MinixReadInode(PDEVICE_OBJECT DeviceObject,
+                       MINIX_DEVICE_EXTENSION* DeviceExt,
+                       ULONG ino,
+                       struct minix_inode* result);
+NTSTATUS MinixDeleteInode(PDEVICE_OBJECT Volume,
+                         MINIX_DEVICE_EXTENSION* DeviceExt,
+                         ULONG ino);
+
+NTSTATUS MinixReadBlock(PDEVICE_OBJECT DeviceObject,
+                       PMINIX_DEVICE_EXTENSION DeviceExt,
+                       struct minix_inode* inode,
+                       ULONG FileOffset,
+                       PULONG DiskOffset);
+
+BOOLEAN MinixReadPage(PDEVICE_OBJECT DeviceObject,
+                     ULONG Offset,
+                     PVOID Buffer);