308 lines
10 KiB
Go
308 lines
10 KiB
Go
package api
|
|
|
|
import (
|
|
"bytes"
|
|
"errors"
|
|
)
|
|
|
|
type SCSICommandType byte
|
|
|
|
var (
|
|
TEST_UNIT_READY SCSICommandType = 0x00
|
|
REZERO_UNIT SCSICommandType = 0x01
|
|
REQUEST_SENSE SCSICommandType = 0x03
|
|
FORMAT_UNIT SCSICommandType = 0x04
|
|
READ_BLOCK_LIMITS SCSICommandType = 0x05
|
|
REASSIGN_BLOCKS SCSICommandType = 0x07
|
|
INITIALIZE_ELEMENT_STATUS SCSICommandType = 0x07
|
|
READ_6 SCSICommandType = 0x08
|
|
WRITE_6 SCSICommandType = 0x0a
|
|
SEEK_6 SCSICommandType = 0x0b
|
|
READ_REVERSE SCSICommandType = 0x0f
|
|
WRITE_FILEMARKS SCSICommandType = 0x10
|
|
SPACE SCSICommandType = 0x11
|
|
INQUIRY SCSICommandType = 0x12
|
|
RECOVER_BUFFERED_DATA SCSICommandType = 0x14
|
|
MODE_SELECT SCSICommandType = 0x15
|
|
RESERVE SCSICommandType = 0x16
|
|
RELEASE SCSICommandType = 0x17
|
|
COPY SCSICommandType = 0x18
|
|
ERASE SCSICommandType = 0x19
|
|
MODE_SENSE SCSICommandType = 0x1a
|
|
START_STOP SCSICommandType = 0x1b
|
|
RECEIVE_DIAGNOSTIC SCSICommandType = 0x1c
|
|
SEND_DIAGNOSTIC SCSICommandType = 0x1d
|
|
ALLOW_MEDIUM_REMOVAL SCSICommandType = 0x1e
|
|
|
|
SET_WINDOW SCSICommandType = 0x24
|
|
READ_CAPACITY SCSICommandType = 0x25
|
|
READ_10 SCSICommandType = 0x28
|
|
WRITE_10 SCSICommandType = 0x2a
|
|
SEEK_10 SCSICommandType = 0x2b
|
|
POSITION_TO_ELEMENT SCSICommandType = 0x2b
|
|
WRITE_VERIFY SCSICommandType = 0x2e
|
|
VERIFY_10 SCSICommandType = 0x2f
|
|
SEARCH_HIGH SCSICommandType = 0x30
|
|
SEARCH_EQUAL SCSICommandType = 0x31
|
|
SEARCH_LOW SCSICommandType = 0x32
|
|
SET_LIMITS SCSICommandType = 0x33
|
|
PRE_FETCH_10 SCSICommandType = 0x34
|
|
READ_POSITION SCSICommandType = 0x34
|
|
SYNCHRONIZE_CACHE SCSICommandType = 0x35
|
|
LOCK_UNLOCK_CACHE SCSICommandType = 0x36
|
|
READ_DEFECT_DATA SCSICommandType = 0x37
|
|
INITIALIZE_ELEMENT_STATUS_WITH_RANGE SCSICommandType = 0x37
|
|
MEDIUM_SCAN SCSICommandType = 0x38
|
|
COMPARE SCSICommandType = 0x39
|
|
COPY_VERIFY SCSICommandType = 0x3a
|
|
WRITE_BUFFER SCSICommandType = 0x3b
|
|
READ_BUFFER SCSICommandType = 0x3c
|
|
UPDATE_BLOCK SCSICommandType = 0x3d
|
|
READ_LONG SCSICommandType = 0x3e
|
|
WRITE_LONG SCSICommandType = 0x3f
|
|
CHANGE_DEFINITION SCSICommandType = 0x40
|
|
WRITE_SAME SCSICommandType = 0x41
|
|
UNMAP SCSICommandType = 0x42
|
|
READ_TOC SCSICommandType = 0x43
|
|
GET_CONFIGURATION SCSICommandType = 0x46
|
|
LOG_SELECT SCSICommandType = 0x4c
|
|
LOG_SENSE SCSICommandType = 0x4d
|
|
READ_DISK_INFO SCSICommandType = 0x51
|
|
READ_TRACK_INFO SCSICommandType = 0x52
|
|
MODE_SELECT_10 SCSICommandType = 0x55
|
|
RESERVE_10 SCSICommandType = 0x56
|
|
RELEASE_10 SCSICommandType = 0x57
|
|
MODE_SENSE_10 SCSICommandType = 0x5a
|
|
CLOSE_TRACK SCSICommandType = 0x5b
|
|
READ_BUFFER_CAP SCSICommandType = 0x5c
|
|
PERSISTENT_RESERVE_IN SCSICommandType = 0x5e
|
|
PERSISTENT_RESERVE_OUT SCSICommandType = 0x5f
|
|
VARLEN_CDB SCSICommandType = 0x7f
|
|
READ_16 SCSICommandType = 0x88
|
|
COMPARE_AND_WRITE SCSICommandType = 0x89
|
|
WRITE_16 SCSICommandType = 0x8a
|
|
ORWRITE_16 SCSICommandType = 0x8b
|
|
WRITE_VERIFY_16 SCSICommandType = 0x8e
|
|
VERIFY_16 SCSICommandType = 0x8f
|
|
PRE_FETCH_16 SCSICommandType = 0x90
|
|
SYNCHRONIZE_CACHE_16 SCSICommandType = 0x91
|
|
WRITE_SAME_16 SCSICommandType = 0x93
|
|
SERVICE_ACTION_IN SCSICommandType = 0x9e
|
|
SAI_READ_CAPACITY_16 SCSICommandType = 0x10
|
|
SAI_GET_LBA_STATUS SCSICommandType = 0x12
|
|
REPORT_LUNS SCSICommandType = 0xa0
|
|
MAINT_PROTOCOL_IN SCSICommandType = 0xa3
|
|
MOVE_MEDIUM SCSICommandType = 0xa5
|
|
EXCHANGE_MEDIUM SCSICommandType = 0xa6
|
|
READ_12 SCSICommandType = 0xa8
|
|
WRITE_12 SCSICommandType = 0xaa
|
|
GET_PERFORMACE SCSICommandType = 0xac
|
|
READ_DVD_STRUCTURE SCSICommandType = 0xad
|
|
WRITE_VERIFY_12 SCSICommandType = 0xae
|
|
VERIFY_12 SCSICommandType = 0xaf
|
|
SEARCH_HIGH_12 SCSICommandType = 0xb0
|
|
SEARCH_EQUAL_12 SCSICommandType = 0xb1
|
|
SEARCH_LOW_12 SCSICommandType = 0xb2
|
|
READ_ELEMENT_STATUS SCSICommandType = 0xb8
|
|
SEND_VOLUME_TAG SCSICommandType = 0xb6
|
|
SET_STREAMING SCSICommandType = 0xb6
|
|
SET_CD_SPEED SCSICommandType = 0xbb
|
|
WRITE_LONG_2 SCSICommandType = 0xea
|
|
)
|
|
|
|
type SCSITargetState int
|
|
|
|
var (
|
|
TargetOnline SCSITargetState = 1
|
|
TargetReady SCSITargetState = 2
|
|
)
|
|
|
|
type SCSIDataDirection int
|
|
|
|
const (
|
|
SCSIDataNone = iota
|
|
SCSIDataWrite
|
|
SCSIDataRead
|
|
SCSIDataBidirection
|
|
)
|
|
|
|
type SCSIDataBuffer struct {
|
|
Buffer *bytes.Buffer
|
|
Length uint32
|
|
TransferLength uint32
|
|
Resid int32
|
|
}
|
|
|
|
type SCSICommand struct {
|
|
Target *SCSITarget
|
|
DeviceID uint64
|
|
Device *SCSILu
|
|
State uint64
|
|
Direction SCSIDataDirection
|
|
InSDBBuffer SCSIDataBuffer
|
|
OutSDBBuffer SCSIDataBuffer
|
|
// Command ITN ID
|
|
CommandITNID uint64
|
|
Offset uint64
|
|
TL uint32
|
|
SCB *bytes.Buffer
|
|
SCBLength int
|
|
Lun []uint8
|
|
Attribute int
|
|
Tag uint64
|
|
Result byte
|
|
SenseBuffer *bytes.Buffer
|
|
SenseLength uint32
|
|
ITNexus *ITNexus
|
|
ITNexusLuInfo *ITNexusLuInfo
|
|
}
|
|
type ITNexus struct {
|
|
ID uint64
|
|
Ctime uint64
|
|
Commands []SCSICommand
|
|
Target *SCSITarget
|
|
Host int
|
|
Info string
|
|
}
|
|
|
|
type ITNexusLuInfo struct {
|
|
Lu *SCSILu
|
|
ID uint64
|
|
Prevent int
|
|
}
|
|
|
|
type SCSITarget struct {
|
|
Name string
|
|
TID int
|
|
LID int
|
|
State SCSITargetState
|
|
Devices []SCSILu
|
|
ITNexus []ITNexus
|
|
|
|
SCSITargetDriver interface{}
|
|
}
|
|
|
|
type SCSITargetDriverState int
|
|
|
|
const (
|
|
// just registered
|
|
SCSI_DRIVER_REGD = iota
|
|
// initialized ok
|
|
SCSI_DRIVER_INIT
|
|
// failed to initialize
|
|
SCSI_DRIVER_ERR
|
|
// exited
|
|
SCSI_DRIVER_EXIT
|
|
)
|
|
|
|
type SCSITargetDriverCommon struct {
|
|
Name string
|
|
State SCSITargetDriverState
|
|
DefaultBST string
|
|
}
|
|
|
|
type SCSILuPhyAttribute struct {
|
|
SCSIID string
|
|
SCSISN string
|
|
NumID uint64
|
|
VendorID string
|
|
ProductID string
|
|
ProductRev string
|
|
VersionDesction []uint16
|
|
// Peripheral device type
|
|
DeviceType uint
|
|
// Peripheral Qualifier
|
|
Qualifier bool
|
|
// Removable media
|
|
Removable bool
|
|
// Read Only media
|
|
Readonly bool
|
|
// Software Write Protect
|
|
SWP bool
|
|
// Use thin-provisioning for this LUN
|
|
Thinprovisioning bool
|
|
// Logical Unit online
|
|
Online bool
|
|
// Descrptor format sense data supported
|
|
SenseFormat bool
|
|
// Logical blocks per physical block exponent
|
|
Lbppbe int
|
|
// Do not update it automatically when the backing file changes
|
|
NoLbppbe int
|
|
// Lowest aligned LBA
|
|
LowestAlignedLBA int
|
|
}
|
|
|
|
var (
|
|
DefaultBlockShift int = 9
|
|
DefaultSenseBufferSize int = 252
|
|
)
|
|
|
|
var (
|
|
SAM_STAT_GOOD byte = 0x00
|
|
SAM_STAT_CHECK_CONDITION byte = 0x02
|
|
SAM_STAT_CONDITION_MET byte = 0x04
|
|
SAM_STAT_BUSY byte = 0x08
|
|
SAM_STAT_INTERMEDIATE byte = 0x10
|
|
SAM_STAT_INTERMEDIATE_CONDITION_MET byte = 0x14
|
|
SAM_STAT_RESERVATION_CONFLICT byte = 0x18
|
|
SAM_STAT_COMMAND_TERMINATED byte = 0x22
|
|
SAM_STAT_TASK_SET_FULL byte = 0x28
|
|
SAM_STAT_ACA_ACTIVE byte = 0x30
|
|
SAM_STAT_TASK_ABORTED byte = 0x40
|
|
)
|
|
|
|
type SAMStat struct {
|
|
Stat byte
|
|
Err error
|
|
}
|
|
|
|
var (
|
|
SAMStatGood = SAMStat{SAM_STAT_GOOD, nil}
|
|
SAMStatCheckCondition = SAMStat{SAM_STAT_CHECK_CONDITION, errors.New("check condition")}
|
|
SAMStatConditionMet = SAMStat{SAM_STAT_CONDITION_MET, errors.New("condition met")}
|
|
SAMStatBusy = SAMStat{SAM_STAT_BUSY, errors.New("busy")}
|
|
SAMStatIntermediate = SAMStat{SAM_STAT_INTERMEDIATE, errors.New("intermediate")}
|
|
SAMStatIntermediateConditionMet = SAMStat{SAM_STAT_INTERMEDIATE_CONDITION_MET, errors.New("intermediate condition met")}
|
|
SAMStatReservationConflict = SAMStat{SAM_STAT_RESERVATION_CONFLICT, errors.New("reservation conflict")}
|
|
SAMStatCommandTerminated = SAMStat{SAM_STAT_COMMAND_TERMINATED, errors.New("command terminated")}
|
|
SAMStatTaskSetFull = SAMStat{SAM_STAT_TASK_SET_FULL, errors.New("task set full")}
|
|
SAMStatAcaActive = SAMStat{SAM_STAT_ACA_ACTIVE, errors.New("aca active")}
|
|
SAMStatTaskAborted = SAMStat{SAM_STAT_TASK_ABORTED, errors.New("task aborted")}
|
|
)
|
|
|
|
type SCSIDeviceType byte
|
|
|
|
var (
|
|
TYPE_DISK SCSIDeviceType = 0x00
|
|
TYPE_TAPE SCSIDeviceType = 0x01
|
|
TYPE_PRINTER SCSIDeviceType = 0x02
|
|
TYPE_PROCESSOR SCSIDeviceType = 0x03
|
|
TYPE_WORM SCSIDeviceType = 0x04
|
|
TYPE_MMC SCSIDeviceType = 0x05
|
|
TYPE_SCANNER SCSIDeviceType = 0x06
|
|
TYPE_MOD SCSIDeviceType = 0x07
|
|
|
|
TYPE_MEDIUM_CHANGER SCSIDeviceType = 0x08
|
|
TYPE_COMM SCSIDeviceType = 0x09
|
|
TYPE_RAID SCSIDeviceType = 0x0c
|
|
TYPE_ENCLOSURE SCSIDeviceType = 0x0d
|
|
TYPE_RBC SCSIDeviceType = 0x0e
|
|
TYPE_OSD SCSIDeviceType = 0x11
|
|
TYPE_NO_LUN SCSIDeviceType = 0x7f
|
|
|
|
TYPE_PT SCSIDeviceType = 0xff
|
|
)
|
|
|
|
type SCSILu struct {
|
|
FD int
|
|
Address uint64
|
|
Size uint64
|
|
Lun uint64
|
|
Path string
|
|
BsoFlags int
|
|
BlockShift uint
|
|
ReserveID uint64
|
|
Attrs SCSILuPhyAttribute
|
|
}
|