2007-04-06 01:09:06 +00:00
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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Merge ZFS version 15 and almost all OpenSolaris bugfixes referenced
in Solaris 10 updates 141445-09 and 142901-14.
Detailed information:
(OpenSolaris revisions and Bug IDs, Solaris 10 patch numbers)
7844:effed23820ae
6755435 zfs_open() and zfs_close() needs to use ZFS_ENTER/ZFS_VERIFY_ZP (141445-01)
7897:e520d8258820
6748436 inconsistent zpool.cache in boot_archive could panic a zfs root filesystem upon boot-up (141445-01)
7965:b795da521357
6740164 zpool attach can create an illegal root pool (141909-02)
8084:b811cc60d650
6769612 zpool_import() will continue to write to cachefile even if altroot is set (N/A)
8121:7fd09d4ebd9c
6757430 want an option for zdb to disable space map loading and leak tracking (141445-01)
8129:e4f45a0bfbb0
6542860 ASSERT: reason != VDEV_LABEL_REMOVE||vdev_inuse(vd, crtxg, reason, 0) (141445-01)
8188:fd00c0a81e80
6761100 want zdb option to select older uberblocks (141445-01)
8190:6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw (141445-01)
8225:59a9961c2aeb
6737463 panic while trying to write out config file if root pool import fails (141445-01)
8227:f7d7be9b1f56
6765294 Refactor replay (141445-01)
8228:51e9ca9ee3a5
6572357 libzfs should do more to avoid mnttab lookups (141909-01)
6572376 zfs_iter_filesystems and zfs_iter_snapshots get objset stats twice (141909-01)
8241:5a60f16123ba
6328632 zpool offline is a bit too conservative (141445-01)
6739487 ASSERT: txg <= spa_final_txg due to scrub/export race (141445-01)
6767129 ASSERT: cvd->vdev_isspare, in spa_vdev_detach() (141445-01)
6747698 checksum failures after offline -t / export / import / scrub (141445-01)
6745863 ZFS writes to disk after it has been offlined (141445-01)
6722540 50% slowdown on scrub/resilver with certain vdev configurations (141445-01)
6759999 resilver logic rewrites ditto blocks on both source and destination (141445-01)
6758107 I/O should never suspend during spa_load() (141445-01)
6776548 codereview(1) runs off the page when faced with multi-line comments (N/A)
6761406 AMD errata 91 workaround doesn't work on 64-bit systems (141445-01)
8242:e46e4b2f0a03
6770866 GRUB/ZFS should require physical path or devid, but not both (141445-01)
8269:03a7e9050cfd
6674216 "zfs share" doesn't work, but "zfs set sharenfs=on" does (141445-01)
6621164 $SRC/cmd/zfs/zfs_main.c seems to have a syntax error in the translation note (141445-01)
6635482 i18n problems in libzfs_dataset.c and zfs_main.c (141445-01)
6595194 "zfs get" VALUE column is as wide as NAME (141445-01)
6722991 vdev_disk.c: error checking for ddi_pathname_to_dev_t() must test for NODEV (141445-01)
6396518 ASSERT strings shouldn't be pre-processed (141445-01)
8274:846b39508aff
6713916 scrub/resilver needlessly decompress data (141445-01)
8343:655db2375fed
6739553 libzfs_status msgid table is out of sync (141445-01)
6784104 libzfs unfairly rejects numerical values greater than 2^63 (141445-01)
6784108 zfs_realloc() should not free original memory on failure (141445-01)
8525:e0e0e525d0f8
6788830 set large value to reservation cause core dump (141445-01)
6791064 want sysevents for ZFS scrub (141445-01)
6791066 need to be able to set cachefile on faulted pools (141445-01)
6791071 zpool_do_import() should not enable datasets on faulted pools (141445-01)
6792134 getting multiple properties on a faulted pool leads to confusion (141445-01)
8547:bcc7b46e5ff7
6792884 Vista clients cannot access .zfs (141445-01)
8632:36ef517870a3
6798384 It can take a village to raise a zio (141445-01)
8636:7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage() (141909-01)
6504953 zfs_getpage() misunderstands VOP_GETPAGE() interface (141909-01)
6702206 ZFS read/writer lock contention throttles sendfile() benchmark (141445-01)
6780491 Zone on a ZFS filesystem has poor fork/exec performance (141445-01)
6747596 assertion failed: DVA_EQUAL(BP_IDENTITY(&zio->io_bp_orig), BP_IDENTITY(zio->io_bp))); (141445-01)
8692:692d4668b40d
6801507 ZFS read aggregation should not mind the gap (141445-01)
8697:e62d2612c14d
6633095 creating a filesystem with many properties set is slow (141445-01)
8768:dfecfdbb27ed
6775697 oracle crashes when overwriting after hitting quota on zfs (141909-01)
8811:f8deccf701cf
6790687 libzfs mnttab caching ignores external changes (141445-01)
6791101 memory leak from libzfs_mnttab_init (141445-01)
8845:91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses (N/A)
6582163 Access Control List (ACL) for shares (141445-01)
6804954 smb_search - shortname field should be space padded following the NULL terminator (N/A)
6800184 Panic at smb_oplock_conflict+0x35() (N/A)
8876:59d2e67b4b65
6803822 Reboot after replacement of system disk in a ZFS mirror drops to grub> prompt (141445-01)
8924:5af812f84759
6789318 coredump when issue zdb -uuuu poolname/ (141445-01)
6790345 zdb -dddd -e poolname coredump (141445-01)
6797109 zdb: 'zdb -dddddd pool_name/fs_name inode' coredump if the file with inode was deleted (141445-01)
6797118 zdb: 'zdb -dddddd poolname inum' coredump if I miss the fs name (141445-01)
6803343 shareiscsi=on failed, iscsitgtd failed request to share (141445-01)
9030:243fd360d81f
6815893 hang mounting a dataset after booting into a new boot environment (141445-01)
9056:826e1858a846
6809691 'zpool create -f' no longer overwrites ufs infomation (141445-01)
9179:d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process (141445-01)
9214:8d350e5d04aa
6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy (141909-01)
6810367 assertion failed: dvp->v_flag & VROOT, file: ../../common/fs/gfs.c, line: 426 (141909-01)
9229:e3f8b41e5db4
6807765 ztest_dsl_dataset_promote_busy needs to clean up after ENOSPC (141445-01)
9230:e4561e3eb1ef
6821169 offlining a device results in checksum errors (141445-01)
6821170 ZFS should not increment error stats for unavailable devices (141445-01)
6824006 need to increase issue and interrupt taskqs threads in zfs (141445-01)
9234:bffdc4fc05c4
6792139 recovering from a suspended pool needs some work (141445-01)
6794830 reboot command hangs on a failed zfs pool (141445-01)
9246:67c03c93c071
6824062 System panicked in zfs_mount due to NULL pointer dereference when running btts and svvs tests (141909-01)
9276:a8a7fc849933
6816124 System crash running zpool destroy on broken zpool (141445-03)
9355:09928982c591
6818183 zfs snapshot -r is slow due to set_snap_props() doing txg_wait_synced() for each new snapshot (141445-03)
9391:413d0661ef33
6710376 log device can show incorrect status when other parts of pool are degraded (141445-03)
9396:f41cf682d0d3 (part already merged)
6501037 want user/group quotas on ZFS (141445-03)
6827260 assertion failed in arc_read(): hdr == pbuf->b_hdr (141445-03)
6815592 panic: No such hold X on refcount Y from zfs_znode_move (141445-03)
6759986 zfs list shows temporary %clone when doing online zfs recv (141445-03)
9404:319573cd93f8
6774713 zfs ignores canmount=noauto when sharenfs property != off (141445-03)
9412:4aefd8704ce0
6717022 ZFS DMU needs zero-copy support (141445-03)
9425:e7ffacaec3a8
6799895 spa_add_spares() needs to be protected by config lock (141445-03)
6826466 want to post sysevents on hot spare activation (141445-03)
6826468 spa 'allowfaulted' needs some work (141445-03)
6826469 kernel support for storing vdev FRU information (141445-03)
6826470 skip posting checksum errors from DTL regions of leaf vdevs (141445-03)
6826471 I/O errors after device remove probe can confuse FMA (141445-03)
6826472 spares should enjoy some of the benefits of cache devices (141445-03)
9443:2a96d8478e95
6833711 gang leaders shouldn't have to be logical (141445-03)
9463:d0bd231c7518
6764124 want zdb to be able to checksum metadata blocks only (141445-03)
9465:8372081b8019
6830237 zfs panic in zfs_groupmember() (141445-03)
9466:1fdfd1fed9c4
6833162 phantom log device in zpool status (141445-03)
9469:4f68f041ddcd
6824968 add ZFS userquota support to rquotad (141445-03)
9470:6d827468d7b5
6834217 godfather I/O should reexecute (141445-03)
9480:fcff33da767f
6596237 Stop looking and start ganging (141909-02)
9493:9933d599bc93
6623978 lwb->lwb_buf != NULL, file ../../../uts/common/fs/zfs/zil.c, line 787, function zil_lwb_commit (141445-06)
9512:64cafcbcc337
6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads (N/A)
9515:d3b739d9d043
6586537 async zio taskqs can block out userland commands (142901-09)
9554:787363635b6a
6836768 zfs_userspace() callback has no way to indicate failure (N/A)
9574:1eb6a6ab2c57
6838062 zfs panics when an error is encountered in space_map_load() (141909-02)
9583:b0696cd037cc
6794136 Panic BAD TRAP: type=e when importing degraded zraid pool. (141909-03)
9630:e25a03f552e0
6776104 "zfs import" deadlock between spa_unload() and spa_async_thread() (141445-06)
9653:a70048a304d1
6664765 Unable to remove files when using fat-zap and quota exceeded on ZFS filesystem (141445-06)
9688:127be1845343
6841321 zfs userspace / zfs get userused@ doesn't work on mounted snapshot (N/A)
6843069 zfs get userused@S-1-... doesn't work (N/A)
9873:8ddc892eca6e
6847229 assertion failed: refcount_count(&tx->tx_space_written) + delta <= tx->tx_space_towrite in dmu_tx.c (141445-06)
9904:d260bd3fd47c
6838344 kernel heap corruption detected on zil while stress testing (141445-06)
9951:a4895b3dd543
6844900 zfs_ioc_userspace_upgrade leaks (N/A)
10040:38b25aeeaf7a
6857012 zfs panics on zpool import (141445-06)
10000:241a51d8720c
6848242 zdb -e no longer works as expected (N/A)
10100:4a6965f6bef8
6856634 snv_117 not booting: zfs_parse_bootfs: error2 (141445-07)
10160:a45b03783d44
6861983 zfs should use new name <-> SID interfaces (N/A)
6862984 userquota commands can hang (141445-06)
10299:80845694147f
6696858 zfs receive of incremental replication stream can dereference NULL pointer and crash (N/A)
10302:a9e3d1987706
6696858 zfs receive of incremental replication stream can dereference NULL pointer and crash (fix lint) (N/A)
10575:2a8816c5173b (partial merge)
6882227 spa_async_remove() shouldn't do a full clear (142901-14)
10800:469478b180d9
6880764 fsync on zfs is broken if writes are greater than 32kb on a hard crash and no log attached (142901-09)
6793430 zdb -ivvvv assertion failure: bp->blk_cksum.zc_word[2] == dmu_objset_id(zilog->zl_os) (N/A)
10801:e0bf032e8673 (partial merge)
6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT (142901-09)
10810:b6b161a6ae4a
6892298 buf->b_hdr->b_state != arc_anon, file: ../../common/fs/zfs/arc.c, line: 2849 (142901-09)
10890:499786962772
6807339 spurious checksum errors when replacing a vdev (142901-13)
11249:6c30f7dfc97b
6906110 bad trap panic in zil_replay_log_record (142901-13)
6906946 zfs replay isn't handling uid/gid correctly (142901-13)
11454:6e69bacc1a5a
6898245 suspended zpool should not cause rest of the zfs/zpool commands to hang (142901-10)
11546:42ea6be8961b (partial merge)
6833999 3-way deadlock in dsl_dataset_hold_ref() and dsl_sync_task_group_sync() (142901-09)
Discussed with: pjd
Approved by: delphij (mentor)
Obtained from: OpenSolaris (multiple Bug IDs)
MFC after: 2 months
2010-07-12 23:49:04 +00:00
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* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
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2007-04-06 01:09:06 +00:00
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* Use is subject to license terms.
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*/
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/*
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* Common name validation routines for ZFS. These routines are shared by the
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* userland code as well as the ioctl() layer to ensure that we don't
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* inadvertently expose a hole through direct ioctl()s that never gets tested.
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* In userland, however, we want significantly more information about _why_ the
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* name is invalid. In the kernel, we only care whether it's valid or not.
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* Each routine therefore takes a 'namecheck_err_t' which describes exactly why
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* the name failed to validate.
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*
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* Each function returns 0 on success, -1 on error.
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*/
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#if defined(_KERNEL)
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#include <sys/systm.h>
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#else
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#include <string.h>
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#endif
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#include <sys/param.h>
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Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.
This bring huge amount of changes, I'll enumerate only user-visible changes:
- Delegated Administration
Allows regular users to perform ZFS operations, like file system
creation, snapshot creation, etc.
- L2ARC
Level 2 cache for ZFS - allows to use additional disks for cache.
Huge performance improvements mostly for random read of mostly
static content.
- slog
Allow to use additional disks for ZFS Intent Log to speed up
operations like fsync(2).
- vfs.zfs.super_owner
Allows regular users to perform privileged operations on files stored
on ZFS file systems owned by him. Very careful with this one.
- chflags(2)
Not all the flags are supported. This still needs work.
- ZFSBoot
Support to boot off of ZFS pool. Not finished, AFAIK.
Submitted by: dfr
- Snapshot properties
- New failure modes
Before if write requested failed, system paniced. Now one
can select from one of three failure modes:
- panic - panic on write error
- wait - wait for disk to reappear
- continue - serve read requests if possible, block write requests
- Refquota, refreservation properties
Just quota and reservation properties, but don't count space consumed
by children file systems, clones and snapshots.
- Sparse volumes
ZVOLs that don't reserve space in the pool.
- External attributes
Compatible with extattr(2).
- NFSv4-ACLs
Not sure about the status, might not be complete yet.
Submitted by: trasz
- Creation-time properties
- Regression tests for zpool(8) command.
Obtained from: OpenSolaris
2008-11-17 20:49:29 +00:00
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#include <sys/nvpair.h>
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2007-04-06 01:09:06 +00:00
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#include "zfs_namecheck.h"
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Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.
This bring huge amount of changes, I'll enumerate only user-visible changes:
- Delegated Administration
Allows regular users to perform ZFS operations, like file system
creation, snapshot creation, etc.
- L2ARC
Level 2 cache for ZFS - allows to use additional disks for cache.
Huge performance improvements mostly for random read of mostly
static content.
- slog
Allow to use additional disks for ZFS Intent Log to speed up
operations like fsync(2).
- vfs.zfs.super_owner
Allows regular users to perform privileged operations on files stored
on ZFS file systems owned by him. Very careful with this one.
- chflags(2)
Not all the flags are supported. This still needs work.
- ZFSBoot
Support to boot off of ZFS pool. Not finished, AFAIK.
Submitted by: dfr
- Snapshot properties
- New failure modes
Before if write requested failed, system paniced. Now one
can select from one of three failure modes:
- panic - panic on write error
- wait - wait for disk to reappear
- continue - serve read requests if possible, block write requests
- Refquota, refreservation properties
Just quota and reservation properties, but don't count space consumed
by children file systems, clones and snapshots.
- Sparse volumes
ZVOLs that don't reserve space in the pool.
- External attributes
Compatible with extattr(2).
- NFSv4-ACLs
Not sure about the status, might not be complete yet.
Submitted by: trasz
- Creation-time properties
- Regression tests for zpool(8) command.
Obtained from: OpenSolaris
2008-11-17 20:49:29 +00:00
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#include "zfs_deleg.h"
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2007-04-06 01:09:06 +00:00
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static int
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valid_char(char c)
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{
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return ((c >= 'a' && c <= 'z') ||
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(c >= 'A' && c <= 'Z') ||
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(c >= '0' && c <= '9') ||
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Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.
This bring huge amount of changes, I'll enumerate only user-visible changes:
- Delegated Administration
Allows regular users to perform ZFS operations, like file system
creation, snapshot creation, etc.
- L2ARC
Level 2 cache for ZFS - allows to use additional disks for cache.
Huge performance improvements mostly for random read of mostly
static content.
- slog
Allow to use additional disks for ZFS Intent Log to speed up
operations like fsync(2).
- vfs.zfs.super_owner
Allows regular users to perform privileged operations on files stored
on ZFS file systems owned by him. Very careful with this one.
- chflags(2)
Not all the flags are supported. This still needs work.
- ZFSBoot
Support to boot off of ZFS pool. Not finished, AFAIK.
Submitted by: dfr
- Snapshot properties
- New failure modes
Before if write requested failed, system paniced. Now one
can select from one of three failure modes:
- panic - panic on write error
- wait - wait for disk to reappear
- continue - serve read requests if possible, block write requests
- Refquota, refreservation properties
Just quota and reservation properties, but don't count space consumed
by children file systems, clones and snapshots.
- Sparse volumes
ZVOLs that don't reserve space in the pool.
- External attributes
Compatible with extattr(2).
- NFSv4-ACLs
Not sure about the status, might not be complete yet.
Submitted by: trasz
- Creation-time properties
- Regression tests for zpool(8) command.
Obtained from: OpenSolaris
2008-11-17 20:49:29 +00:00
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c == '-' || c == '_' || c == '.' || c == ':' || c == ' ');
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2007-04-06 01:09:06 +00:00
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}
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/*
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* Snapshot names must be made up of alphanumeric characters plus the following
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* characters:
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*
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2011-02-27 19:41:40 +00:00
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* [-_.: ]
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2007-04-06 01:09:06 +00:00
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*/
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int
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snapshot_namecheck(const char *path, namecheck_err_t *why, char *what)
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{
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const char *loc;
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if (strlen(path) >= MAXNAMELEN) {
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if (why)
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*why = NAME_ERR_TOOLONG;
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return (-1);
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}
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if (path[0] == '\0') {
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if (why)
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*why = NAME_ERR_EMPTY_COMPONENT;
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return (-1);
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}
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for (loc = path; *loc; loc++) {
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if (!valid_char(*loc)) {
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if (why) {
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*why = NAME_ERR_INVALCHAR;
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*what = *loc;
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}
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return (-1);
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}
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}
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return (0);
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}
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Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.
This bring huge amount of changes, I'll enumerate only user-visible changes:
- Delegated Administration
Allows regular users to perform ZFS operations, like file system
creation, snapshot creation, etc.
- L2ARC
Level 2 cache for ZFS - allows to use additional disks for cache.
Huge performance improvements mostly for random read of mostly
static content.
- slog
Allow to use additional disks for ZFS Intent Log to speed up
operations like fsync(2).
- vfs.zfs.super_owner
Allows regular users to perform privileged operations on files stored
on ZFS file systems owned by him. Very careful with this one.
- chflags(2)
Not all the flags are supported. This still needs work.
- ZFSBoot
Support to boot off of ZFS pool. Not finished, AFAIK.
Submitted by: dfr
- Snapshot properties
- New failure modes
Before if write requested failed, system paniced. Now one
can select from one of three failure modes:
- panic - panic on write error
- wait - wait for disk to reappear
- continue - serve read requests if possible, block write requests
- Refquota, refreservation properties
Just quota and reservation properties, but don't count space consumed
by children file systems, clones and snapshots.
- Sparse volumes
ZVOLs that don't reserve space in the pool.
- External attributes
Compatible with extattr(2).
- NFSv4-ACLs
Not sure about the status, might not be complete yet.
Submitted by: trasz
- Creation-time properties
- Regression tests for zpool(8) command.
Obtained from: OpenSolaris
2008-11-17 20:49:29 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Permissions set name must start with the letter '@' followed by the
|
|
|
|
* same character restrictions as snapshot names, except that the name
|
|
|
|
* cannot exceed 64 characters.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
permset_namecheck(const char *path, namecheck_err_t *why, char *what)
|
|
|
|
{
|
|
|
|
if (strlen(path) >= ZFS_PERMSET_MAXLEN) {
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_TOOLONG;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (path[0] != '@') {
|
|
|
|
if (why) {
|
|
|
|
*why = NAME_ERR_NO_AT;
|
|
|
|
*what = path[0];
|
|
|
|
}
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (snapshot_namecheck(&path[1], why, what));
|
|
|
|
}
|
|
|
|
|
2007-04-06 01:09:06 +00:00
|
|
|
/*
|
|
|
|
* Dataset names must be of the following form:
|
|
|
|
*
|
|
|
|
* [component][/]*[component][@component]
|
|
|
|
*
|
|
|
|
* Where each component is made up of alphanumeric characters plus the following
|
|
|
|
* characters:
|
|
|
|
*
|
Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.
This bring huge amount of changes, I'll enumerate only user-visible changes:
- Delegated Administration
Allows regular users to perform ZFS operations, like file system
creation, snapshot creation, etc.
- L2ARC
Level 2 cache for ZFS - allows to use additional disks for cache.
Huge performance improvements mostly for random read of mostly
static content.
- slog
Allow to use additional disks for ZFS Intent Log to speed up
operations like fsync(2).
- vfs.zfs.super_owner
Allows regular users to perform privileged operations on files stored
on ZFS file systems owned by him. Very careful with this one.
- chflags(2)
Not all the flags are supported. This still needs work.
- ZFSBoot
Support to boot off of ZFS pool. Not finished, AFAIK.
Submitted by: dfr
- Snapshot properties
- New failure modes
Before if write requested failed, system paniced. Now one
can select from one of three failure modes:
- panic - panic on write error
- wait - wait for disk to reappear
- continue - serve read requests if possible, block write requests
- Refquota, refreservation properties
Just quota and reservation properties, but don't count space consumed
by children file systems, clones and snapshots.
- Sparse volumes
ZVOLs that don't reserve space in the pool.
- External attributes
Compatible with extattr(2).
- NFSv4-ACLs
Not sure about the status, might not be complete yet.
Submitted by: trasz
- Creation-time properties
- Regression tests for zpool(8) command.
Obtained from: OpenSolaris
2008-11-17 20:49:29 +00:00
|
|
|
* [-_.:%]
|
|
|
|
*
|
|
|
|
* We allow '%' here as we use that character internally to create unique
|
|
|
|
* names for temporary clones (for online recv).
|
2007-04-06 01:09:06 +00:00
|
|
|
*/
|
|
|
|
int
|
|
|
|
dataset_namecheck(const char *path, namecheck_err_t *why, char *what)
|
|
|
|
{
|
|
|
|
const char *loc, *end;
|
|
|
|
int found_snapshot;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Make sure the name is not too long.
|
|
|
|
*
|
|
|
|
* ZFS_MAXNAMELEN is the maximum dataset length used in the userland
|
|
|
|
* which is the same as MAXNAMELEN used in the kernel.
|
|
|
|
* If ZFS_MAXNAMELEN value is changed, make sure to cleanup all
|
|
|
|
* places using MAXNAMELEN.
|
|
|
|
*/
|
Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.
This bring huge amount of changes, I'll enumerate only user-visible changes:
- Delegated Administration
Allows regular users to perform ZFS operations, like file system
creation, snapshot creation, etc.
- L2ARC
Level 2 cache for ZFS - allows to use additional disks for cache.
Huge performance improvements mostly for random read of mostly
static content.
- slog
Allow to use additional disks for ZFS Intent Log to speed up
operations like fsync(2).
- vfs.zfs.super_owner
Allows regular users to perform privileged operations on files stored
on ZFS file systems owned by him. Very careful with this one.
- chflags(2)
Not all the flags are supported. This still needs work.
- ZFSBoot
Support to boot off of ZFS pool. Not finished, AFAIK.
Submitted by: dfr
- Snapshot properties
- New failure modes
Before if write requested failed, system paniced. Now one
can select from one of three failure modes:
- panic - panic on write error
- wait - wait for disk to reappear
- continue - serve read requests if possible, block write requests
- Refquota, refreservation properties
Just quota and reservation properties, but don't count space consumed
by children file systems, clones and snapshots.
- Sparse volumes
ZVOLs that don't reserve space in the pool.
- External attributes
Compatible with extattr(2).
- NFSv4-ACLs
Not sure about the status, might not be complete yet.
Submitted by: trasz
- Creation-time properties
- Regression tests for zpool(8) command.
Obtained from: OpenSolaris
2008-11-17 20:49:29 +00:00
|
|
|
|
2007-04-06 01:09:06 +00:00
|
|
|
if (strlen(path) >= MAXNAMELEN) {
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_TOOLONG;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Explicitly check for a leading slash. */
|
|
|
|
if (path[0] == '/') {
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_LEADING_SLASH;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (path[0] == '\0') {
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_EMPTY_COMPONENT;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
loc = path;
|
|
|
|
found_snapshot = 0;
|
|
|
|
for (;;) {
|
|
|
|
/* Find the end of this component */
|
|
|
|
end = loc;
|
|
|
|
while (*end != '/' && *end != '@' && *end != '\0')
|
|
|
|
end++;
|
|
|
|
|
|
|
|
if (*end == '\0' && end[-1] == '/') {
|
|
|
|
/* trailing slashes are not allowed */
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_TRAILING_SLASH;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Zero-length components are not allowed */
|
|
|
|
if (loc == end) {
|
|
|
|
if (why) {
|
|
|
|
/*
|
|
|
|
* Make sure this is really a zero-length
|
|
|
|
* component and not a '@@'.
|
|
|
|
*/
|
|
|
|
if (*end == '@' && found_snapshot) {
|
|
|
|
*why = NAME_ERR_MULTIPLE_AT;
|
|
|
|
} else {
|
|
|
|
*why = NAME_ERR_EMPTY_COMPONENT;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Validate the contents of this component */
|
|
|
|
while (loc != end) {
|
Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.
This bring huge amount of changes, I'll enumerate only user-visible changes:
- Delegated Administration
Allows regular users to perform ZFS operations, like file system
creation, snapshot creation, etc.
- L2ARC
Level 2 cache for ZFS - allows to use additional disks for cache.
Huge performance improvements mostly for random read of mostly
static content.
- slog
Allow to use additional disks for ZFS Intent Log to speed up
operations like fsync(2).
- vfs.zfs.super_owner
Allows regular users to perform privileged operations on files stored
on ZFS file systems owned by him. Very careful with this one.
- chflags(2)
Not all the flags are supported. This still needs work.
- ZFSBoot
Support to boot off of ZFS pool. Not finished, AFAIK.
Submitted by: dfr
- Snapshot properties
- New failure modes
Before if write requested failed, system paniced. Now one
can select from one of three failure modes:
- panic - panic on write error
- wait - wait for disk to reappear
- continue - serve read requests if possible, block write requests
- Refquota, refreservation properties
Just quota and reservation properties, but don't count space consumed
by children file systems, clones and snapshots.
- Sparse volumes
ZVOLs that don't reserve space in the pool.
- External attributes
Compatible with extattr(2).
- NFSv4-ACLs
Not sure about the status, might not be complete yet.
Submitted by: trasz
- Creation-time properties
- Regression tests for zpool(8) command.
Obtained from: OpenSolaris
2008-11-17 20:49:29 +00:00
|
|
|
if (!valid_char(*loc) && *loc != '%') {
|
2007-04-06 01:09:06 +00:00
|
|
|
if (why) {
|
|
|
|
*why = NAME_ERR_INVALCHAR;
|
|
|
|
*what = *loc;
|
|
|
|
}
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
loc++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we've reached the end of the string, we're OK */
|
|
|
|
if (*end == '\0')
|
|
|
|
return (0);
|
|
|
|
|
|
|
|
if (*end == '@') {
|
|
|
|
/*
|
|
|
|
* If we've found an @ symbol, indicate that we're in
|
|
|
|
* the snapshot component, and report a second '@'
|
|
|
|
* character as an error.
|
|
|
|
*/
|
|
|
|
if (found_snapshot) {
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_MULTIPLE_AT;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
found_snapshot = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If there is a '/' in a snapshot name
|
|
|
|
* then report an error
|
|
|
|
*/
|
|
|
|
if (*end == '/' && found_snapshot) {
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_TRAILING_SLASH;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Update to the next component */
|
|
|
|
loc = end + 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.
This bring huge amount of changes, I'll enumerate only user-visible changes:
- Delegated Administration
Allows regular users to perform ZFS operations, like file system
creation, snapshot creation, etc.
- L2ARC
Level 2 cache for ZFS - allows to use additional disks for cache.
Huge performance improvements mostly for random read of mostly
static content.
- slog
Allow to use additional disks for ZFS Intent Log to speed up
operations like fsync(2).
- vfs.zfs.super_owner
Allows regular users to perform privileged operations on files stored
on ZFS file systems owned by him. Very careful with this one.
- chflags(2)
Not all the flags are supported. This still needs work.
- ZFSBoot
Support to boot off of ZFS pool. Not finished, AFAIK.
Submitted by: dfr
- Snapshot properties
- New failure modes
Before if write requested failed, system paniced. Now one
can select from one of three failure modes:
- panic - panic on write error
- wait - wait for disk to reappear
- continue - serve read requests if possible, block write requests
- Refquota, refreservation properties
Just quota and reservation properties, but don't count space consumed
by children file systems, clones and snapshots.
- Sparse volumes
ZVOLs that don't reserve space in the pool.
- External attributes
Compatible with extattr(2).
- NFSv4-ACLs
Not sure about the status, might not be complete yet.
Submitted by: trasz
- Creation-time properties
- Regression tests for zpool(8) command.
Obtained from: OpenSolaris
2008-11-17 20:49:29 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* mountpoint names must be of the following form:
|
|
|
|
*
|
|
|
|
* /[component][/]*[component][/]
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
mountpoint_namecheck(const char *path, namecheck_err_t *why)
|
|
|
|
{
|
|
|
|
const char *start, *end;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Make sure none of the mountpoint component names are too long.
|
|
|
|
* If a component name is too long then the mkdir of the mountpoint
|
|
|
|
* will fail but then the mountpoint property will be set to a value
|
|
|
|
* that can never be mounted. Better to fail before setting the prop.
|
|
|
|
* Extra slashes are OK, they will be tossed by the mountpoint mkdir.
|
|
|
|
*/
|
|
|
|
|
|
|
|
if (path == NULL || *path != '/') {
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_LEADING_SLASH;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Skip leading slash */
|
|
|
|
start = &path[1];
|
|
|
|
do {
|
|
|
|
end = start;
|
|
|
|
while (*end != '/' && *end != '\0')
|
|
|
|
end++;
|
|
|
|
|
|
|
|
if (end - start >= MAXNAMELEN) {
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_TOOLONG;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
start = end + 1;
|
|
|
|
|
|
|
|
} while (*end != '\0');
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
2007-04-06 01:09:06 +00:00
|
|
|
/*
|
|
|
|
* For pool names, we have the same set of valid characters as described in
|
|
|
|
* dataset names, with the additional restriction that the pool name must begin
|
|
|
|
* with a letter. The pool names 'raidz' and 'mirror' are also reserved names
|
|
|
|
* that cannot be used.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
pool_namecheck(const char *pool, namecheck_err_t *why, char *what)
|
|
|
|
{
|
|
|
|
const char *c;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Make sure the name is not too long.
|
|
|
|
*
|
|
|
|
* ZPOOL_MAXNAMELEN is the maximum pool length used in the userland
|
|
|
|
* which is the same as MAXNAMELEN used in the kernel.
|
|
|
|
* If ZPOOL_MAXNAMELEN value is changed, make sure to cleanup all
|
|
|
|
* places using MAXNAMELEN.
|
|
|
|
*/
|
|
|
|
if (strlen(pool) >= MAXNAMELEN) {
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_TOOLONG;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
c = pool;
|
|
|
|
while (*c != '\0') {
|
|
|
|
if (!valid_char(*c)) {
|
|
|
|
if (why) {
|
|
|
|
*why = NAME_ERR_INVALCHAR;
|
|
|
|
*what = *c;
|
|
|
|
}
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
c++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(*pool >= 'a' && *pool <= 'z') &&
|
|
|
|
!(*pool >= 'A' && *pool <= 'Z')) {
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_NOLETTER;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (strcmp(pool, "mirror") == 0 || strcmp(pool, "raidz") == 0) {
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_RESERVED;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (pool[0] == 'c' && (pool[1] >= '0' && pool[1] <= '9')) {
|
|
|
|
if (why)
|
|
|
|
*why = NAME_ERR_DISKLIKE;
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|