| Eric Andersen | 624cc77 | 2000-09-21 02:04:51 +0000 | [diff] [blame] | 1 | /* |
| 2 | * include/linux/loop.h |
| 3 | * |
| 4 | * Written by Theodore Ts'o, 3/29/93. |
| 5 | * |
| 6 | * Copyright 1993 by Theodore Ts'o. Redistribution of this file is |
| 7 | * permitted under the GNU Public License. |
| 8 | */ |
| 9 | |
| 10 | #define LO_NAME_SIZE 64 |
| 11 | #define LO_KEY_SIZE 32 |
| 12 | |
| 13 | struct loop_info { |
| 14 | int lo_number; /* ioctl r/o */ |
| 15 | dev_t lo_device; /* ioctl r/o */ |
| 16 | unsigned long lo_inode; /* ioctl r/o */ |
| 17 | dev_t lo_rdevice; /* ioctl r/o */ |
| 18 | int lo_offset; |
| 19 | int lo_encrypt_type; |
| 20 | int lo_encrypt_key_size; /* ioctl w/o */ |
| 21 | int lo_flags; /* ioctl r/o */ |
| 22 | char lo_name[LO_NAME_SIZE]; |
| 23 | unsigned char lo_encrypt_key[LO_KEY_SIZE]; /* ioctl w/o */ |
| 24 | unsigned long lo_init[2]; |
| 25 | char reserved[4]; |
| 26 | }; |
| 27 | |
| 28 | #define LO_CRYPT_NONE 0 |
| 29 | #define LO_CRYPT_XOR 1 |
| 30 | #define LO_CRYPT_DES 2 |
| 31 | #define LO_CRYPT_IDEA 3 |
| 32 | #define MAX_LO_CRYPT 4 |
| 33 | |
| 34 | #define LOOP_SET_FD 0x4C00 |
| 35 | #define LOOP_CLR_FD 0x4C01 |
| 36 | #define LOOP_SET_STATUS 0x4C02 |
| 37 | #define LOOP_GET_STATUS 0x4C03 |