98 lines
2.4 KiB
C
98 lines
2.4 KiB
C
|
/*
|
||
|
|
* include/linux/loop.h
|
||
|
|
*
|
||
|
|
* Written by Theodore Ts'o, 3/29/93.
|
||
|
|
*
|
||
|
|
* Copyright 1993 by Theodore Ts'o. Redistribution of this file is
|
||
|
|
* permitted under the GNU General Public License.
|
||
|
|
*/
|
||
|
|
#ifndef _UAPI_LINUX_LOOP_H
|
||
|
|
#define _UAPI_LINUX_LOOP_H
|
||
|
|
|
||
|
|
|
||
|
|
#define LO_NAME_SIZE 64
|
||
|
|
#define LO_KEY_SIZE 32
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Loop flags
|
||
|
|
*/
|
||
|
|
enum {
|
||
|
|
LO_FLAGS_READ_ONLY = 1,
|
||
|
|
LO_FLAGS_AUTOCLEAR = 4,
|
||
|
|
LO_FLAGS_PARTSCAN = 8,
|
||
|
|
LO_FLAGS_DIRECT_IO = 16,
|
||
|
|
};
|
||
|
|
|
||
|
|
#include <asm/posix_types.h> /* for __kernel_old_dev_t */
|
||
|
|
#include <linux/types.h> /* for __u64 */
|
||
|
|
|
||
|
|
/* Backwards compatibility version */
|
||
|
|
struct loop_info {
|
||
|
|
int lo_number; /* ioctl r/o */
|
||
|
|
__kernel_old_dev_t lo_device; /* ioctl r/o */
|
||
|
|
unsigned long lo_inode; /* ioctl r/o */
|
||
|
|
__kernel_old_dev_t lo_rdevice; /* ioctl r/o */
|
||
|
|
int lo_offset;
|
||
|
|
int lo_encrypt_type;
|
||
|
|
int lo_encrypt_key_size; /* ioctl w/o */
|
||
|
|
int lo_flags; /* ioctl r/o */
|
||
|
|
char lo_name[LO_NAME_SIZE];
|
||
|
|
unsigned char lo_encrypt_key[LO_KEY_SIZE]; /* ioctl w/o */
|
||
|
|
unsigned long lo_init[2];
|
||
|
|
char reserved[4];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct loop_info64 {
|
||
|
|
__u64 lo_device; /* ioctl r/o */
|
||
|
|
__u64 lo_inode; /* ioctl r/o */
|
||
|
|
__u64 lo_rdevice; /* ioctl r/o */
|
||
|
|
__u64 lo_offset;
|
||
|
|
__u64 lo_sizelimit;/* bytes, 0 == max available */
|
||
|
|
__u32 lo_number; /* ioctl r/o */
|
||
|
|
__u32 lo_encrypt_type;
|
||
|
|
__u32 lo_encrypt_key_size; /* ioctl w/o */
|
||
|
|
__u32 lo_flags; /* ioctl r/o */
|
||
|
|
__u8 lo_file_name[LO_NAME_SIZE];
|
||
|
|
__u8 lo_crypt_name[LO_NAME_SIZE];
|
||
|
|
__u8 lo_encrypt_key[LO_KEY_SIZE]; /* ioctl w/o */
|
||
|
|
__u64 lo_init[2];
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Loop filter types
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define LO_CRYPT_NONE 0
|
||
|
|
#define LO_CRYPT_XOR 1
|
||
|
|
#define LO_CRYPT_DES 2
|
||
|
|
#define LO_CRYPT_FISH2 3 /* Twofish encryption */
|
||
|
|
#define LO_CRYPT_BLOW 4
|
||
|
|
#define LO_CRYPT_CAST128 5
|
||
|
|
#define LO_CRYPT_IDEA 6
|
||
|
|
#define LO_CRYPT_DUMMY 9
|
||
|
|
#define LO_CRYPT_SKIPJACK 10
|
||
|
|
#define LO_CRYPT_CRYPTOAPI 18
|
||
|
|
#define MAX_LO_CRYPT 20
|
||
|
|
|
||
|
|
/*
|
||
|
|
* IOCTL commands --- we will commandeer 0x4C ('L')
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define LOOP_SET_FD 0x4C00
|
||
|
|
#define LOOP_CLR_FD 0x4C01
|
||
|
|
#define LOOP_SET_STATUS 0x4C02
|
||
|
|
#define LOOP_GET_STATUS 0x4C03
|
||
|
|
#define LOOP_SET_STATUS64 0x4C04
|
||
|
|
#define LOOP_GET_STATUS64 0x4C05
|
||
|
|
#define LOOP_CHANGE_FD 0x4C06
|
||
|
|
#define LOOP_SET_CAPACITY 0x4C07
|
||
|
|
#define LOOP_SET_DIRECT_IO 0x4C08
|
||
|
|
#define LOOP_SET_BLOCK_SIZE 0x4C09
|
||
|
|
|
||
|
|
/* /dev/loop-control interface */
|
||
|
|
#define LOOP_CTL_ADD 0x4C80
|
||
|
|
#define LOOP_CTL_REMOVE 0x4C81
|
||
|
|
#define LOOP_CTL_GET_FREE 0x4C82
|
||
|
|
#endif /* _UAPI_LINUX_LOOP_H */
|