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