86 lines
2.9 KiB
Python
86 lines
2.9 KiB
Python
# Copyright 2018 Red Hat, Inc
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# Copyright 2017 Rackspace Australia
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# Copyright 2018 Michael Still and Aptira
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Helpers for ietadm related routines.
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"""
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from oslo_concurrency import processutils
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import cinder.privsep
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def new_target(name, tid):
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"""Create new scsi target using specified parameters.
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If the target already exists, ietadm returns
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'Invalid argument' and error code '234'.
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This should be ignored for ensure export case.
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"""
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processutils.execute('ietadm', '--op', 'new',
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'--tid=%s' % tid,
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'--params', 'Name=%s' % name,
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check_exit_code=[0, 234])
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def delete_target(tid):
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processutils.execute('ietadm', '--op', 'delete',
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'--tid=%s' % tid)
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def force_delete_target(tid, sid, cid):
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processutils.execute('ietadm', '--op', 'delete',
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'--tid=%s' % tid,
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'--sid=%s' % sid,
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'--cid=%s' % cid)
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def new_logicalunit(tid, lun, path, iotype):
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"""Attach a new volume to scsi target as a logical unit.
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If a logical unit exists on the specified target lun,
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ietadm returns 'File exists' and error code '239'.
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This should be ignored for ensure export case.
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"""
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processutils.execute('ietadm', '--op', 'new',
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'--tid=%s' % tid,
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'--lun=%d' % lun,
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'--params',
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'Path=%s,Type=%s' % (path, iotype),
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check_exit_code=[0, 239])
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def delete_logicalunit(tid, lun):
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processutils.execute('ietadm', '--op', 'delete',
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'--tid=%s' % tid,
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'--lun=%d' % lun)
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def new_auth(tid, type, username, password):
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processutils.execute('ietadm', '--op', 'new',
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'--tid=%s' % tid,
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'--user',
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'--params=%s=%s,Password=%s' % (type,
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username,
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password))
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