118 lines
3.5 KiB
Python
118 lines
3.5 KiB
Python
#
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# Copyright 2015 ClusterHQ
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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"""
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Important `libzfs_core` constants.
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"""
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from __future__ import absolute_import, division, print_function
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import errno
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import sys
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# Compat for platform-specific errnos
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if sys.platform.startswith('freebsd'):
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ECHRNG = errno.ENXIO
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ECKSUM = 97 # EINTEGRITY
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ETIME = errno.ETIMEDOUT
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else:
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ECHRNG = errno.ECHRNG
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ECKSUM = errno.EBADE
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ETIME = errno.ETIME
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# https://stackoverflow.com/a/1695250
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def enum_with_offset(offset, sequential, named):
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enums = dict(((b, a + offset) for a, b in enumerate(sequential)), **named)
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return type('Enum', (), enums)
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def enum(*sequential, **named):
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return enum_with_offset(0, sequential, named)
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#: Maximum length of any ZFS name.
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MAXNAMELEN = 255
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#: Default channel program limits
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ZCP_DEFAULT_INSTRLIMIT = 10 * 1000 * 1000
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ZCP_DEFAULT_MEMLIMIT = 10 * 1024 * 1024
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#: Encryption wrapping key length
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WRAPPING_KEY_LEN = 32
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#: Encryption key location enum
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zfs_key_location = enum(
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'ZFS_KEYLOCATION_NONE',
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'ZFS_KEYLOCATION_PROMPT',
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'ZFS_KEYLOCATION_URI'
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)
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#: Encryption key format enum
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zfs_keyformat = enum(
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'ZFS_KEYFORMAT_NONE',
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'ZFS_KEYFORMAT_RAW',
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'ZFS_KEYFORMAT_HEX',
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'ZFS_KEYFORMAT_PASSPHRASE'
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)
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# Encryption algorithms enum
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zio_encrypt = enum(
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'ZIO_CRYPT_INHERIT',
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'ZIO_CRYPT_ON',
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'ZIO_CRYPT_OFF',
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'ZIO_CRYPT_AES_128_CCM',
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'ZIO_CRYPT_AES_192_CCM',
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'ZIO_CRYPT_AES_256_CCM',
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'ZIO_CRYPT_AES_128_GCM',
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'ZIO_CRYPT_AES_192_GCM',
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'ZIO_CRYPT_AES_256_GCM'
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)
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# ZFS-specific error codes
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zfs_errno = enum_with_offset(1024, [
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'ZFS_ERR_CHECKPOINT_EXISTS',
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'ZFS_ERR_DISCARDING_CHECKPOINT',
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'ZFS_ERR_NO_CHECKPOINT',
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'ZFS_ERR_DEVRM_IN_PROGRESS',
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'ZFS_ERR_VDEV_TOO_BIG',
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'ZFS_ERR_IOC_CMD_UNAVAIL',
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'ZFS_ERR_IOC_ARG_UNAVAIL',
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'ZFS_ERR_IOC_ARG_REQUIRED',
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'ZFS_ERR_IOC_ARG_BADTYPE',
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'ZFS_ERR_WRONG_PARENT',
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'ZFS_ERR_FROM_IVSET_GUID_MISSING',
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'ZFS_ERR_FROM_IVSET_GUID_MISMATCH',
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'ZFS_ERR_SPILL_BLOCK_FLAG_MISSING',
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'ZFS_ERR_UNKNOWN_SEND_STREAM_FEATURE',
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'ZFS_ERR_EXPORT_IN_PROGRESS',
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'ZFS_ERR_BOOKMARK_SOURCE_NOT_ANCESTOR',
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'ZFS_ERR_STREAM_TRUNCATED',
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'ZFS_ERR_STREAM_LARGE_BLOCK_MISMATCH',
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'ZFS_ERR_RESILVER_IN_PROGRESS',
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'ZFS_ERR_REBUILD_IN_PROGRESS',
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'ZFS_ERR_BADPROP',
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'ZFS_ERR_VDEV_NOTSUP',
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'ZFS_ERR_NOT_USER_NAMESPACE',
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],
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{}
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)
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# compat before we used the enum helper for these values
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ZFS_ERR_CHECKPOINT_EXISTS = zfs_errno.ZFS_ERR_CHECKPOINT_EXISTS
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assert (ZFS_ERR_CHECKPOINT_EXISTS == 1024)
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ZFS_ERR_DISCARDING_CHECKPOINT = zfs_errno.ZFS_ERR_DISCARDING_CHECKPOINT
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ZFS_ERR_NO_CHECKPOINT = zfs_errno.ZFS_ERR_NO_CHECKPOINT
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ZFS_ERR_DEVRM_IN_PROGRESS = zfs_errno.ZFS_ERR_DEVRM_IN_PROGRESS
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ZFS_ERR_VDEV_TOO_BIG = zfs_errno.ZFS_ERR_VDEV_TOO_BIG
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ZFS_ERR_WRONG_PARENT = zfs_errno.ZFS_ERR_WRONG_PARENT
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ZFS_ERR_VDEV_NOTSUP = zfs_errno.ZFS_ERR_VDEV_NOTSUP
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# vim: softtabstop=4 tabstop=4 expandtab shiftwidth=4
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