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loop_wrapper.go

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// +build linux

package loopback

/*

#include <linux/loop.h> // FIXME: present only for defines, maybe we can remove it?

#ifndef LOOP_CTL_GET_FREE

#define LOOP_CTL_GET_FREE 0x4C82

#endif

#ifndef LO_FLAGS_PARTSCAN

#define LO_FLAGS_PARTSCAN 8

#endif

*/

import "C"

type loopInfo64 struct {

loDevice uint64 /* ioctl r/o */

loInode uint64 /* ioctl r/o */

loRdevice uint64 /* ioctl r/o */

loOffset uint64

loSizelimit uint64 /* bytes, 0 == max available */

loNumber uint32 /* ioctl r/o */

loEncryptType uint32

loEncryptKeySize uint32 /* ioctl w/o */

loFlags uint32 /* ioctl r/o */

loFileName [LoNameSize]uint8

loCryptName [LoNameSize]uint8

loEncryptKey [LoKeySize]uint8 /* ioctl w/o */

loInit [2]uint64

}

// IOCTL consts

const (

LoopSetFd = C.LOOP_SET_FD

LoopCtlGetFree = C.LOOP_CTL_GET_FREE

LoopGetStatus64 = C.LOOP_GET_STATUS64

LoopSetStatus64 = C.LOOP_SET_STATUS64

LoopClrFd = C.LOOP_CLR_FD

LoopSetCapacity = C.LOOP_SET_CAPACITY

)

// LOOP consts.

const (

LoFlagsAutoClear = C.LO_FLAGS_AUTOCLEAR

LoFlagsReadOnly = C.LO_FLAGS_READ_ONLY

LoFlagsPartScan = C.LO_FLAGS_PARTSCAN

LoKeySize = C.LO_KEY_SIZE

LoNameSize = C.LO_NAME_SIZE

)