4 #define MINIX_ROOT_INO 1
6 /* Not the same as the bogus LINK_MAX in <linux/limits.h>. Oh well. */
7 #define MINIX_LINK_MAX 250
9 #define MINIX_I_MAP_SLOTS 8
10 #define MINIX_Z_MAP_SLOTS 64
11 #define MINIX_SUPER_MAGIC 0x137F /* original minix fs */
12 #define MINIX_SUPER_MAGIC2 0x138F /* minix fs, 30 char names */
13 #define MINIX2_SUPER_MAGIC 0x2468 /* minix V2 fs */
14 #define MINIX2_SUPER_MAGIC2 0x2478 /* minix V2 fs, 30 char names */
15 #define MINIX_VALID_FS 0x0001 /* Clean fs. */
16 #define MINIX_ERROR_FS 0x0002 /* fs has errors. */
18 #define MINIX_INODES_PER_BLOCK ((BLOCKSIZE)/(sizeof (struct minix_inode)))
19 #define MINIX2_INODES_PER_BLOCK ((BLOCKSIZE)/(sizeof (struct minix2_inode)))
21 #define MINIX_V1 0x0001 /* original minix fs */
22 #define MINIX_V2 0x0002 /* minix V2 fs */
26 * This is the original minix inode layout on disk.
27 * Note the 8-bit gid and atime and ctime.
30 unsigned short int i_mode;
31 unsigned short int i_uid;
35 unsigned char i_nlinks;
36 unsigned short int i_zone[9];
40 * The new minix inode has all the time entries, as well as
41 * long block numbers and a third indirect block (7+1+1+1
42 * instead of 7+1+1). Also, some previously 8-bit values are
43 * now 16-bit. The inode is now 64 bytes instead of 32.
46 unsigned short int i_mode;
47 unsigned short int i_nlinks;
48 unsigned short int i_uid;
49 unsigned short int i_gid;
51 unsigned long i_atime;
52 unsigned long i_mtime;
53 unsigned long i_ctime;
54 unsigned long i_zone[10];
58 * minix super-block data on disk
60 struct minix_super_block {
61 unsigned short int s_ninodes;
62 unsigned short int s_nzones;
63 unsigned short int s_imap_blocks;
64 unsigned short int s_zmap_blocks;
65 unsigned short int s_firstdatazone;
66 unsigned short int s_log_zone_size;
67 unsigned long s_max_size;
68 unsigned short int s_magic;
69 unsigned short int s_state;
70 unsigned long s_zones;
73 struct minix_dir_entry {
74 unsigned short int inode;
77 #define MINIX_DIR_ENTRY_SIZE (sizeof(struct minix_dir_entry)+30)
79 BOOLEAN MinixReadSector(IN PDEVICE_OBJECT pDeviceObject,
82 BOOLEAN MinixWriteSector(IN PDEVICE_OBJECT pDeviceObject,
86 #define BLOCKSIZE (1024)
88 //extern PDRIVER_OBJECT DriverObject;
92 PDEVICE_OBJECT AttachedDevice;
93 struct minix_inode root_inode;
94 char superblock_buf[BLOCKSIZE];
95 struct minix_super_block* sb;
96 PFILE_OBJECT FileObject;
97 } MINIX_DEVICE_EXTENSION, *PMINIX_DEVICE_EXTENSION;
101 struct minix_inode inode;
102 } MINIX_FSCONTEXT, *PMINIX_FSCONTEXT;
104 NTSTATUS STDCALL MinixCreate(PDEVICE_OBJECT DeviceObject, PIRP Irp);
105 NTSTATUS STDCALL MinixClose(PDEVICE_OBJECT DeviceObject, PIRP Irp);
106 NTSTATUS STDCALL MinixWrite(PDEVICE_OBJECT DeviceObject, PIRP Irp);
107 NTSTATUS STDCALL MinixRead(PDEVICE_OBJECT DeviceObject, PIRP Irp);
108 NTSTATUS STDCALL MinixDirectoryControl(PDEVICE_OBJECT DeviceObject, PIRP Irp);
110 ULONG MinixNewInode(PDEVICE_OBJECT Volume,
111 MINIX_DEVICE_EXTENSION* DeviceExt,
112 struct minix_inode* new_inode);
113 NTSTATUS MinixWriteInode(PDEVICE_OBJECT Volume,
114 MINIX_DEVICE_EXTENSION* DeviceExt,
116 struct minix_inode* result);
117 NTSTATUS MinixReadInode(PDEVICE_OBJECT DeviceObject,
118 MINIX_DEVICE_EXTENSION* DeviceExt,
120 struct minix_inode* result);
121 NTSTATUS MinixDeleteInode(PDEVICE_OBJECT Volume,
122 MINIX_DEVICE_EXTENSION* DeviceExt,
125 NTSTATUS MinixReadBlock(PDEVICE_OBJECT DeviceObject,
126 PMINIX_DEVICE_EXTENSION DeviceExt,
127 struct minix_inode* inode,
131 BOOLEAN MinixReadPage(PDEVICE_OBJECT DeviceObject,