| /* Copied from 2.6.25 kernel headers to avoid problems on older hosts, | |
| * and subsequently updated to match newer additions to the API. | |
| */ | |
| #ifndef LINUX_LOOP_H | |
| #define LINUX_LOOP_H | |
| /* | |
| * 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. | |
| */ | |
| #define LO_NAME_SIZE 64 | |
| #define LO_KEY_SIZE 32 | |
| /* | |
| * Loop flags | |
| */ | |
| enum { | |
| LO_FLAGS_READ_ONLY = 1, | |
| LO_FLAGS_USE_AOPS = 2, | |
| LO_FLAGS_AUTOCLEAR = 4, | |
| }; | |
| #include <linux/version.h> | |
| #include <asm/posix_types.h> /* for __kernel_old_dev_t */ | |
| #include <asm/types.h> /* for __u64 */ | |
| #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) /* This is a guess. */ | |
| #define __kernel_old_dev_t __kernel_dev_t | |
| #endif | |
| /* 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 | |
| #define LOOP_CONFIGURE 0x4C0A | |
| /* /dev/loop-control interface */ | |
| #define LOOP_CTL_ADD 0x4C80 | |
| #define LOOP_CTL_REMOVE 0x4C81 | |
| #define LOOP_CTL_GET_FREE 0x4C82 | |
| #endif |