| /* |
| * 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 Public License. |
| */ |
| |
| #define LO_NAME_SIZE 64 |
| #define LO_KEY_SIZE 32 |
| |
| struct loop_info { |
| int lo_number; /* ioctl r/o */ |
| dev_t lo_device; /* ioctl r/o */ |
| unsigned long lo_inode; /* ioctl r/o */ |
| 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]; |
| }; |
| |
| #define LO_CRYPT_NONE 0 |
| #define LO_CRYPT_XOR 1 |
| #define LO_CRYPT_DES 2 |
| #define LO_CRYPT_IDEA 3 |
| #define MAX_LO_CRYPT 4 |
| |
| #define LOOP_SET_FD 0x4C00 |
| #define LOOP_CLR_FD 0x4C01 |
| #define LOOP_SET_STATUS 0x4C02 |
| #define LOOP_GET_STATUS 0x4C03 |
