#ifndef _LINUX_LOOP_H
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#ifndef _LINUX_LOOP_H
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#define _LINUX_LOOP_H
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#define _LINUX_LOOP_H
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/*
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/*
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* include/linux/loop.h
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* include/linux/loop.h
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*
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*
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* Written by Theodore Ts'o, 3/29/93.
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* Written by Theodore Ts'o, 3/29/93.
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*
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*
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* Copyright 1993 by Theodore Ts'o. Redistribution of this file is
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* Copyright 1993 by Theodore Ts'o. Redistribution of this file is
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* permitted under the GNU Public License.
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* permitted under the GNU Public License.
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*/
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*/
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#define LO_NAME_SIZE 64
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#define LO_NAME_SIZE 64
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#define LO_KEY_SIZE 32
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#define LO_KEY_SIZE 32
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#ifdef __KERNEL__
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#ifdef __KERNEL__
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struct loop_device {
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struct loop_device {
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int lo_number;
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int lo_number;
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struct inode *lo_inode;
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struct inode *lo_inode;
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int lo_refcnt;
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int lo_refcnt;
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kdev_t lo_device;
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kdev_t lo_device;
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int lo_offset;
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int lo_offset;
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int lo_encrypt_type;
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int lo_encrypt_type;
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int lo_encrypt_key_size;
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int lo_encrypt_key_size;
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int lo_flags;
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int lo_flags;
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int (*transfer)(struct loop_device *, int cmd,
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int (*transfer)(struct loop_device *, int cmd,
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char *raw_buf, char *loop_buf, int size);
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char *raw_buf, char *loop_buf, int size);
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char lo_name[LO_NAME_SIZE];
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char lo_name[LO_NAME_SIZE];
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char lo_encrypt_key[LO_KEY_SIZE];
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char lo_encrypt_key[LO_KEY_SIZE];
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#ifdef DES_AVAILABLE
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#ifdef DES_AVAILABLE
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des_key_schedule lo_des_key;
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des_key_schedule lo_des_key;
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unsigned long lo_des_init[2];
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unsigned long lo_des_init[2];
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#endif
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#endif
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#ifdef IDEA_AVAILABLE
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#ifdef IDEA_AVAILABLE
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idea_key lo_idea_en_key;
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idea_key lo_idea_en_key;
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idea_key lo_idea_de_key;
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idea_key lo_idea_de_key;
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#endif
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#endif
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};
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};
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typedef int (* transfer_proc_t)(struct loop_device *, int cmd,
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typedef int (* transfer_proc_t)(struct loop_device *, int cmd,
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char *raw_buf, char *loop_buf, int size);
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char *raw_buf, char *loop_buf, int size);
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/*
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/*
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* Loop flags
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* Loop flags
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*/
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*/
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#define LO_FLAGS_DO_BMAP 0x00000001
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#define LO_FLAGS_DO_BMAP 0x00000001
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#define LO_FLAGS_READ_ONLY 0x00000002
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#define LO_FLAGS_READ_ONLY 0x00000002
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#endif /* __KERNEL__ */
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#endif /* __KERNEL__ */
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struct loop_info {
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struct loop_info {
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int lo_number; /* ioctl r/o */
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int lo_number; /* ioctl r/o */
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dev_t lo_device; /* ioctl r/o */
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dev_t lo_device; /* ioctl r/o */
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unsigned long lo_inode; /* ioctl r/o */
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unsigned long lo_inode; /* ioctl r/o */
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dev_t lo_rdevice; /* ioctl r/o */
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dev_t lo_rdevice; /* ioctl r/o */
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int lo_offset;
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int lo_offset;
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int lo_encrypt_type;
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int lo_encrypt_type;
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int lo_encrypt_key_size; /* ioctl w/o */
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int lo_encrypt_key_size; /* ioctl w/o */
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int lo_flags; /* ioctl r/o */
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int lo_flags; /* ioctl r/o */
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char lo_name[LO_NAME_SIZE];
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char lo_name[LO_NAME_SIZE];
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unsigned char lo_encrypt_key[LO_KEY_SIZE]; /* ioctl w/o */
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unsigned char lo_encrypt_key[LO_KEY_SIZE]; /* ioctl w/o */
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unsigned long lo_init[2];
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unsigned long lo_init[2];
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char reserved[4];
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char reserved[4];
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};
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};
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/*
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/*
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* Loop encryption types --- LO_CRYPT_IDEA isn't supported yet
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* Loop encryption types --- LO_CRYPT_IDEA isn't supported yet
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*/
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*/
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#define LO_CRYPT_NONE 0
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#define LO_CRYPT_NONE 0
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#define LO_CRYPT_XOR 1
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#define LO_CRYPT_XOR 1
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#define LO_CRYPT_DES 2
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#define LO_CRYPT_DES 2
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#define LO_CRYPT_IDEA 3
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#define LO_CRYPT_IDEA 3
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#define MAX_LO_CRYPT 4
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#define MAX_LO_CRYPT 4
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/*
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/*
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* IOCTL commands --- we will commandeer 0x4C ('L')
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* IOCTL commands --- we will commandeer 0x4C ('L')
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*/
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*/
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#define LOOP_SET_FD 0x4C00
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#define LOOP_SET_FD 0x4C00
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#define LOOP_CLR_FD 0x4C01
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#define LOOP_CLR_FD 0x4C01
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#define LOOP_SET_STATUS 0x4C02
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#define LOOP_SET_STATUS 0x4C02
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#define LOOP_GET_STATUS 0x4C03
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#define LOOP_GET_STATUS 0x4C03
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#endif
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#endif
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