def execute(self, cmd):
"""
execute a scsi command
:param cmd: a scsi command
"""
dir = iscsi.SCSI_XFER_NONE
xferlen = 0
if len(cmd.datain):
dir = iscsi.SCSI_XFER_READ
xferlen = len(cmd.datain)
if len(cmd.dataout):
dir = iscsi.SCSI_XFER_WRITE
xferlen = len(cmd.dataout)
task = iscsi.Task(cmd.cdb, dir, xferlen)
self._iscsi.command(
self._iscsi_url.lun,
task,
cmd.dataout,
cmd.datain)
if task.status == scsi_enum_command.SCSI_STATUS.CHECK_CONDITION:
# No sense information propagated.
raise self.CheckCondition(cmd.sense)
if task.status == scsi_enum_command.SCSI_STATUS.GOOD:
return
raise RuntimeError
def test_empty_cdb(self):
with self.assertRaises(ValueError):
iscsi.Task(None, iscsi.SCSI_XFER_READ, 96)
def test_basic(self):
task = iscsi.Task(b"\x12\x00\x00\x00\x60\x00", iscsi.SCSI_XFER_READ,
96)
self.assertIsNotNone(task)
def test_bytearray(self):
task = iscsi.Task(bytearray(b"\x12\x00\x00\x00\x60\x00"),
iscsi.SCSI_XFER_READ, 96)
self.assertIsNotNone(task)
def test_command(self):
context = iscsi.Context("foobar")
task = iscsi.Task(b"\x12\x00\x00\x00\x60\x00", iscsi.SCSI_XFER_READ,
96)
data_in = bytearray(96)
context.command(0, task, None, data_in)