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mirror_zfs/include/sys
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Don Brady b83a0e2dc1 Add basic zfs ioc input nvpair validation 
We want newer versions of libzfs_core to run against an existing
zfs kernel module (i.e. a deferred reboot or module reload after
an update).

Programmatically document, via a zfs_ioc_key_t, the valid arguments 
for the ioc commands that rely on nvpair input arguments (i.e. non 
legacy commands from libzfs_core). Automatically verify the expected 
pairs before dispatching a command.

This initial phase focuses on the non-legacy ioctls. A follow-on 
change can address the legacy ioctl input from the zfs_cmd_t.

The zfs_ioc_key_t for zfs_keys_channel_program looks like:

static const zfs_ioc_key_t zfs_keys_channel_program[] = {
       {"program",     DATA_TYPE_STRING,               0},
       {"arg",         DATA_TYPE_UNKNOWN,              0},
       {"sync",        DATA_TYPE_BOOLEAN_VALUE,        ZK_OPTIONAL},
       {"instrlimit",  DATA_TYPE_UINT64,               ZK_OPTIONAL},
       {"memlimit",    DATA_TYPE_UINT64,               ZK_OPTIONAL},
};

Introduce four input errors to identify specific input failures
(in addition to generic argument value errors like EINVAL, ERANGE, 
EBADF, and E2BIG).

ZFS_ERR_IOC_CMD_UNAVAIL the ioctl number is not supported by kernel
ZFS_ERR_IOC_ARG_UNAVAIL an input argument is not supported by kernel
ZFS_ERR_IOC_ARG_REQUIRED a required input argument is missing
ZFS_ERR_IOC_ARG_BADTYPE an input argument has an invalid type

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #7780
2018-09-02 12:14:01 -07:00
..
crypto Add support for selecting encryption backend 2018-08-02 11:59:24 -07:00
fm Update build system and packaging 2018-05-29 16:00:33 -07:00
fs Add basic zfs ioc input nvpair validation 2018-09-02 12:14:01 -07:00
lua Fix coverity defects: zfs channel programs 2018-02-20 11:19:42 -08:00
sysevent OpenZFS 8959 - Add notifications when a scrub is paused or resumed 2018-01-17 10:31:00 -08:00
abd.h Update build system and packaging 2018-05-29 16:00:33 -07:00
aggsum.h OpenZFS 8484 - Implement aggregate sum and use for arc counters 2018-06-06 09:35:59 -07:00
arc_impl.h Add support for decryption faults in zinject 2018-05-02 15:36:20 -07:00
arc.h OpenZFS 9465 - ARC check for 'anon_size > arc_c/2' can stall the system 2018-07-30 11:30:41 -07:00
avl_impl.h
avl.h Remove dead code from AVL tree 2017-10-05 19:28:00 -07:00
blkptr.h
bplist.h
bpobj.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
bptree.h
bqueue.h
cityhash.h OpenZFS 8484 - Implement aggregate sum and use for arc counters 2018-06-06 09:35:59 -07:00
dataset_kstats.h Introduce read/write kstats per dataset 2018-08-20 09:52:37 -07:00
dbuf.h Fix OpenZFS 9337 mismerge 2018-08-02 10:21:48 -07:00
ddt.h Incorrect maximum DVA value in DDE_GET_NDVAS() 2018-02-26 14:20:12 -08:00
dmu_impl.h Fix race in dnode_check_slots_free() 2018-04-10 11:15:05 -07:00
dmu_objset.h OpenZFS 9337 - zfs get all is slow due to uncached metadata 2018-07-12 10:49:27 -07:00
dmu_send.h Added encryption support for zfs recv -o / -x 2018-08-15 09:48:49 -07:00
dmu_traverse.h Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dmu_tx.h Introduce kstat dmu_tx_dirty_frees_delay 2018-07-25 09:52:27 -07:00
dmu_zfetch.h
dmu.h OpenZFS 9442 - decrease indirect block size of spacemaps 2018-07-25 14:11:35 -07:00
dnode.h Fix OpenZFS 9337 mismerge 2018-08-02 10:21:48 -07:00
dsl_bookmark.h
dsl_crypt.h Check encrypted dataset + embedded recv earlier 2018-08-15 09:49:19 -07:00
dsl_dataset.h Always wait for txg sync when umounting dataset 2018-08-27 10:16:28 -07:00
dsl_deadlist.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
dsl_deleg.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
dsl_destroy.h OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
dsl_dir.h OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
dsl_pool.h OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
dsl_prop.h
dsl_scan.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
dsl_synctask.h OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
dsl_userhold.h
edonr.h
efi_partition.h
frame.h Suppress incorrect objtool warnings 2017-12-07 10:28:50 -08:00
hkdf.h Encryption patch follow-up 2017-10-11 16:54:48 -04:00
Makefile.am Add zfs module feature and property info to sysfs 2018-09-02 12:09:53 -07:00
metaslab_impl.h OpenZFS 9112 - Improve allocation performance on high-end systems 2018-07-31 10:52:33 -07:00
metaslab.h OpenZFS 9112 - Improve allocation performance on high-end systems 2018-07-31 10:52:33 -07:00
mmp.h Record skipped MMP writes in multihost_history 2018-03-06 15:15:15 -08:00
mntent.h
multilist.h
note.h Update build system and packaging 2018-05-29 16:00:33 -07:00
nvpair_impl.h OpenZFS 9580 - Add a hash-table on top of nvlist to speed-up operations 2018-07-30 11:30:03 -07:00
nvpair.h OpenZFS 9580 - Add a hash-table on top of nvlist to speed-up operations 2018-07-30 11:30:03 -07:00
pathname.h
policy.h
range_tree.h OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
refcount.h OpenZFS 8081 - Compiler warnings in zdb 2017-10-27 12:46:35 -07:00
rrwlock.h
sa_impl.h
sa.h Project Quota on ZFS 2018-02-13 14:54:54 -08:00
sdt.h Add line info and SET_ERROR() to ZFS debug log 2017-07-25 23:09:48 -07:00
sha2.h
skein.h
spa_boot.h
spa_checkpoint.h OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
spa_checksum.h
spa_impl.h OpenZFS 9112 - Improve allocation performance on high-end systems 2018-07-31 10:52:33 -07:00
spa.h OpenZFS 9465 - ARC check for 'anon_size > arc_c/2' can stall the system 2018-07-30 11:30:41 -07:00
space_map.h OpenZFS 9238 - ZFS Spacemap Encoding V2 2018-07-05 12:02:34 -07:00
space_reftree.h
sysevent.h
trace_acl.h Linux 4.16 compat: inode_set_iversion() 2018-02-08 21:25:19 -08:00
trace_arc.h Support re-prioritizing asynchronous prefetches 2017-12-21 09:13:06 -08:00
trace_common.h
trace_dbgmsg.h Add line info and SET_ERROR() to ZFS debug log 2017-07-25 23:09:48 -07:00
trace_dbuf.h Crash in dbuf_evict_one with DTRACE_PROBE 2017-08-09 11:04:41 -07:00
trace_dmu.h tx_waited -> tx_dirty_delayed in trace_dmu.h 2018-01-31 16:13:26 -08:00
trace_dnode.h
trace_multilist.h
trace_txg.h
trace_vdev.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
trace_zil.h OpenZFS 8585 - improve batching done in zil_commit() 2017-12-05 09:39:16 -08:00
trace_zio.h
trace_zrlock.h Fix race in trace point in zrl_add_impl 2018-03-12 11:27:02 -07:00
trace.h
txg_impl.h OpenZFS 9464 - txg_kick() fails to see that we are quiescing 2018-06-04 14:56:06 -07:00
txg.h Small rework of txg_list code 2018-08-27 10:16:01 -07:00
u8_textprep_data.h
u8_textprep.h
uberblock_impl.h OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
uberblock.h
uio_impl.h
unique.h
uuid.h
vdev_disk.h Add support for autoexpand property 2018-07-23 15:40:15 -07:00
vdev_file.h
vdev_impl.h OpenZFS 9112 - Improve allocation performance on high-end systems 2018-07-31 10:52:33 -07:00
vdev_indirect_births.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
vdev_indirect_mapping.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
vdev_raidz_impl.h Revert raidz_map and _col structure types 2018-01-09 14:46:52 -08:00
vdev_raidz.h
vdev_removal.h OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
vdev.h OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
xvattr.h Linux 4.18 compat: inode timespec -> timespec64 2018-06-19 21:51:18 -07:00
zap_impl.h
zap_leaf.h Fix ENOSPC in "Handle zap_add() failures in ..." 2018-04-18 14:19:50 -07:00
zap.h
zcp_global.h OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
zcp_iter.h OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
zcp_prop.h OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
zcp.h Add tunables for channel programs 2018-06-15 15:10:42 -07:00
zfeature.h
zfs_acl.h Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zfs_context.h Linux 4.18 compat: inode timespec -> timespec64 2018-06-19 21:51:18 -07:00
zfs_ctldir.h
zfs_debug.h OpenZFS 9236 - nuke spa_dbgmsg 2018-04-30 10:19:48 -07:00
zfs_delay.h Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs_dir.h
zfs_fuid.h Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs_ioctl.h OpenZFS 9337 - zfs get all is slow due to uncached metadata 2018-07-12 10:49:27 -07:00
zfs_onexit.h
zfs_project.h Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zfs_ratelimit.h Change checksum & IO delay ratelimit values 2018-03-04 17:34:51 -08:00
zfs_rlock.h
zfs_sa.h Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zfs_stat.h
zfs_sysfs.h Add zfs module feature and property info to sysfs 2018-09-02 12:09:53 -07:00
zfs_vfsops.h Introduce read/write kstats per dataset 2018-08-20 09:52:37 -07:00
zfs_vnops.h RHEL 7.5 compat: FMODE_KABI_ITERATE 2018-05-02 15:01:24 -07:00
zfs_znode.h Add missing checks to zpl_xattr_* functions 2018-08-02 14:03:56 -07:00
zil_impl.h OpenZFS 8909 - 8585 can cause a use-after-free kernel panic 2017-12-28 10:18:04 -08:00
zil.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
zio_checksum.h
zio_compress.h
zio_crypt.h Add support for decryption faults in zinject 2018-05-02 15:36:20 -07:00
zio_impl.h Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
zio_priority.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
zio.h Reduce taskq and context-switch cost of zio pipe 2018-08-02 15:51:45 -07:00
zpl.h Linux 4.18 compat: inode timespec -> timespec64 2018-06-19 21:51:18 -07:00
zrlock.h
zthr.h OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
zvol.h