Commit Graph

64 Commits

Author SHA1 Message Date
Toomas Soome
2ae5841472 libsa: xdrproc_t should return bool
Since our xdr translation function are returning bool, so should
xdrproc_t.

Issue reported by gcc 10 build.
2020-12-27 23:25:18 +02:00
Toomas Soome
d3eae37553 loader: allow loader to accept zfs feature com.delphix:bookmark_written
We do not need to actually read bookmarks, just whitelist this feature.

Reported by:	mjg
2020-12-15 22:37:03 +00:00
Toomas Soome
eba724f361 loader: allow loader to accept zfs feature com.datto:bookmark_v2
We do not need to actually read bookmarks, just whitelist this feature

Reported by:	jpaetzel
2020-12-15 21:48:35 +00:00
Toomas Soome
9de6a13e0f loader: xdr_array is missing count
The integer arrays are encoded in nvlist as counted array <count, i0, i1...>,
loader xdr_array() is missing the count. This will affect the pool import when
there are hole devices in pool.

Also fix the new data add and print functions.
2020-12-07 11:25:18 +00:00
Warner Losh
1ef64e3da5 loader: add aarch64 support for zstd
We don't have NEON available in the boot loader, so we have to disable
it. OpenZFS included ZSTD which used the wrong symbol to bring in neon
support. Change to use the code that's been submitted upstream as a
pull request to both.

__ARM_NEON is the proper symbol, defined in ARM C Language Extensions
Release 2.1 (https://developer.arm.com/documentation/ihi0053/d/). Some
sources suggest __ARM_NEON__, but that's the obsolete spelling from
prior versions of the standard.

OpenZFS Pull Request: https://github.com/openzfs/zfs/pull/11055
ZSTD Pull Request: https://github.com/facebook/zstd/pull/2356
2020-10-28 21:18:04 +00:00
Toomas Soome
e416eecbb9 loader: revert r342161 and r342151
We are using asize property from pool label and we do not depend
on partition data to find last two pool labels and to validate LBA for disk IO.

This does allow us to re-enable support for partitionless disk setups.
2020-10-22 20:02:02 +00:00
Warner Losh
e694696956 Force __BMI__ experimental instructions off.
The OpenZFS code that uses the BMI instructions is broken. Forcibly
disable them to prevent their use. When enabled, the build breaks.
This fixes the build when compiled for a core with BMI instructions.
This is the same fix committed in r364777, for the same issue.

Submitted by: Jung-uk Kim
2020-10-13 04:37:57 +00:00
Warner Losh
df13933e33 Add back org.freebsd:zstd_compress to features_for_read
This list is the of features that are allowed on the whole pool,
not the list of features that are implemented.
2020-10-13 03:49:12 +00:00
Warner Losh
9257c69b1c Turn off zstd on aarch64
loader support for zstd and zfs doesn't work for aarch64. Disable it
to unbreak the build.
2020-10-13 02:36:16 +00:00
Warner Losh
2fec3ae896 Add zstd support to the boot loader.
Add support to the _STANDALONE environment enough bits of the kernel
that we can compile it. We still have a small zstd_shim.c since there
were 3 items that were a bit hard to nail down and may be cleaned up
in the future. These go hand in hand with a number of commits to
sys/sys in the past weeks, should this need be MFCd.

Discussed with: mmacy (in review and on IRC/Slack)
Reviewed by: freqlabs (on openzfs repo)
Differential Revision: https://reviews.freebsd.org/D26218
2020-10-12 22:19:07 +00:00
Toomas Soome
867ae3c38d loader: zfs_probe_dev should pick first matching zfs pool
During devswitch probe, we pick boot pool based on boot disk, if the boot
disk happens to have multiple pools in freebsd-zfs partitions, the current
code does pick last pool from boot disk as boot pool. While there is no
way at that stage to test, the more logical approach would be to pick
first matching pool.

This patch is assuming we do pass pool guid pointer with guid value 0,
this will help us to determine, if the guid value is already set or not.

The general suggestion would be not to share disk between different pools.

Reported by:	Alexander Leidinger
2020-09-23 08:22:14 +00:00
Toomas Soome
e307eb94ae loader: zfs should support bootonce an nextboot
bootonce feature is temporary, one time boot, activated by
"bectl activate -t BE", "bectl activate -T BE" will reset the bootonce flag.

By default, the bootonce setting is reset on attempt to boot and the next
boot will use previously active BE.

By setting zfs_bootonce_activate="YES" in rc.conf, the bootonce BE will
be set permanently active.

bootonce dataset name is recorded in boot pool labels, bootenv area.

in case of nextboot, the nextboot_enable boolean variable is recorded in
freebsd:nvstore nvlist, also stored in boot pool label bootenv area.
On boot, the loader will process /boot/nextboot.conf if nextboot_enable
is "YES", and will set nextboot_enable to "NO", preventing /boot/nextboot.conf
processing on next boot.

bootonce and nextboot features are usable in both UEFI and BIOS boot.

To use bootonce/nextboot features, the boot loader needs to be updated on disk;
if loader.efi is stored on ESP, then ESP needs to be updated and
for BIOS boot, stage2 (zfsboot or gptzfsboot) needs to be updated
(gpart or other tools).

At this time, only lua loader is updated.

Sponsored by:	Netflix, Klara Inc.
Differential Revision:	https://reviews.freebsd.org/D25512
2020-09-21 09:01:10 +00:00
Matt Macy
962619075c ZFS: remove duplicate "com.datto:encryption" from loader 2020-08-27 21:37:35 +00:00
Toomas Soome
0fec8f03cf libsa: only skein_block.c is using SKEIN_LOOP
Only use SKEIN_LOOP while compiling skein_block.c
2020-08-26 17:52:32 +00:00
Matt Macy
3e1470776b ZFS: whitelist zstd and encryption in the loader
Please note that neither zstd nor encryption is
supported by the loader at this instant. This
change makes it safe to use those features in
one's root pool, but not in one's root dataset.
2020-08-25 23:26:52 +00:00
Mariusz Zaborski
277f38abff zfs: add an option to the bootloader to rewind the ZFS checkpoint
The checkpoints are another way of keeping the state of ZFS.
During the rewind, the pool has to be exported.
This makes checkpoints unusable when using ZFS as root.
Add the option to rewind the ZFS checkpoint at the boot time.
If checkpoint exists, a new option for rewinding a checkpoint will appear in
the bootloader menu.
We fully support boot environments.
If the rewind option is selected, the boot loader will show a list of
boot environments that existed before the checkpoint.

Reviewed by:	tsoome, allanjude, kevans (ok with high-level overview)
Differential Revision:	https://reviews.freebsd.org/D24920
2020-08-18 19:48:04 +00:00
Toomas Soome
1a4b982e1e loader: setting vdev size based on label asize is not working
Because we need to read asize from vdev_tree. We also need to consider
different vdev type difference.

Reviewed by:	allanjude
Sponsored by:	Netflix, Klara Inc.
Differential Revision:	https://reviews.freebsd.org/D25586
2020-07-09 13:19:00 +00:00
Toomas Soome
771f100ceb loader: zfs reader does not need BOOT2 bits
After switching zfsloader to use full libsa, we do not need
spa_get_primary() and spa_get_primary_vdev() any more.

Sponsored by:	Netflix, Klara Inc.
2020-07-02 07:15:48 +00:00
Toomas Soome
045f497cbc loader: potential memory leak and check return values
Need to free nvlist before return from vdev_from_nvlist().

Sponsored by:	Netflix, Klara Inc.
2020-07-02 07:03:15 +00:00
Toomas Soome
b93b14dc75 loader: can not read zfs pool with slog removed
The vdev_init() does check for "known" vdev types, the [log] device removal will create "hole"
device, but vdev_init() does not allow it.

Obtained from: illumos
MFC after:	1 week
2020-06-26 21:21:35 +00:00
Toomas Soome
3830659e99 loader: create single zfs nextboot implementation
We should have nextboot feature implemented in libsa zfs code.
To get there, I have created zfs_nextboot() implementation based on
two sources, our current simple textual string based approach with added
structured boot label PAD structure from OpenZFS.

Secondly, all nvlist details are moved to separate source file and
restructured a bit. This is done to provide base support to add nvlist
add/update feature in followup updates.

And finally, the zfsboot/gptzfsboot disk access functions are swapped to use
libi386 and libsa.

Sponsored by:	Netflix, Klara Inc.
Differential Revision:	https://reviews.freebsd.org/D25324
2020-06-20 06:23:31 +00:00
Toomas Soome
aba2397e74 loader: r362262 did miss the pathlen check
While we are checking the "/dev/" prefix, we can skip the paths shorter than
this prefix.

Sponsored by:	Netflix, Klara Inc.
2020-06-17 10:56:58 +00:00
Toomas Soome
c98740b5e2 loader: strings in nvlist are counted strings, not c-strings
We need to fetch both string size and data, then handle the data.

Reviewed by:	allanjude
Sponsored by:	Netflix, Klara Inc.
2020-06-17 10:41:01 +00:00
Toomas Soome
4a2d7cee02 loader: vdev_read() can corrupt memory
When reading less than sector size but from sector boundary,
the vdev_read() will read full sector into the provided buffer
and therefore corrupting memory past buffer end.

MFC after:	2 days
2020-05-09 06:25:20 +00:00
Toomas Soome
6c01b7102d loader: typo did slip into 359408
somehow r was lost from 'char'.
2020-03-28 21:55:42 +00:00
Toomas Soome
215597f05f loader: strdup name strings from dataset walker
The removal of zfs scratch buffer did miss the fact the dataset
lookup was picking up the names from zap list.
2020-03-28 21:50:27 +00:00
Toomas Soome
c1c4c81fd7 loader: replace zfs_alloc/zfs_free with malloc/free
Use common memory management.
2020-02-26 18:12:12 +00:00
Toomas Soome
380977d557 followup on r357497: clean obsolete comment and use shift instead of multiplication
Based on illumos review feedback: leftover comment, but also
have consistent block size calculation and add missing else leg to if
statement.
2020-02-05 13:08:24 +00:00
Toomas Soome
4d297e7035 loader: rewrite zfs reader zap code to use malloc
First step on removing zfs_alloc.

Reviewed by:	delphij
Differential Revision:	https://reviews.freebsd.org/D23433
2020-02-04 07:37:55 +00:00
Toomas Soome
653c3383c7 loader: update zfsimpl.c from illumos review suggestions
Add extra comments and update error handling.

MFH:		1 week
2020-01-06 19:35:22 +00:00
Toomas Soome
3c2db0ef43 loader: rewrite zfs vdev initialization
In some cases the pool discovery will get stuck in infinite loop while setting
up the vdev children.

To fix, we split the vdev setup into two parts, first we create vdevs based on
configuration we do get from pool label, then, we process pool config from MOS
and update the pool config if needed.

Testing done: confirm previously hung loader is not hung any more.

MFC after:	1 week
2019-12-15 21:52:40 +00:00
Toomas Soome
2e6bb6553b loader: zfsimpl.c cstyle cleanup
No functional changes intended.

MFC after:	1 week
2019-12-15 14:09:49 +00:00
Andriy Gapon
c527e92004 zfs boot: fix a crash in a rarely taken path in fzap_lookup
Instead of passing NULL to fzap_name_equal and crashing, just return
ENOENT.  This happened when higher bits of a hash of the searched key
(its hash prefix) matched a hash prefix of some key in the ZAP, but the
full hash value of the searched key did not match any key in the ZAP.

I observerved this problem when loader tried to look up
"features_for_read" in a particular old pool that predates pool
features.

MFC after:	2 weeks
Sponsored by:	Panzura
2019-12-13 22:04:13 +00:00
Andriy Gapon
489912da7b MFV r354382,r354385: 10601 10757 Pool allocation classes
illumos/illumos-gate@663207adb1
663207adb1

10601 Pool allocation classes
https://www.illumos.org/issues/10601
  illumos port of ZoL Pool allocation classes. Includes at least these two
  commits:
  441709695 Pool allocation classes misplacing small file blocks
  cc99f275a Pool allocation classes

10757 Add -gLp to zpool subcommands for alt vdev names
https://www.illumos.org/issues/10757
  Port from ZoL of
  d2f3e292d Add -gLp to zpool subcommands for alt vdev names
  Note that a subsequent ZoL commit changed -p to -P
  a77f29f93 Change full path subcommand flag from -p to -P

Portions contributed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Portions contributed by: Håkan Johansson <f96hajo@chalmers.se>
Portions contributed by: Richard Yao <ryao@gentoo.org>
Portions contributed by: Chunwei Chen <david.chen@nutanix.com>
Portions contributed by: loli10K <ezomori.nozomu@gmail.com>
Author: Don Brady <don.brady@delphix.com>

11541 allocation_classes feature must be enabled to add log device

illumos/illumos-gate@c1064fd7ce
c1064fd7ce

https://www.illumos.org/issues/11541
  After the allocation_classes feature was integrated, one can no longer add a
  log device to a pool unless that feature is enabled. There is an explicit check
  for this, but it is unnecessary in the case of log devices, so we should handle
  this better instead of forcing the feature to be enabled.

Author: Jerry Jelinek <jerry.jelinek@joyent.com>

FreeBSD notes.
I faithfully added the new -g, -L, -P flags, but only -g does something:
vdev GUIDs are displayed instead of device names.  -L, resolve symlinks,
and -P, display full disk paths, do nothing at the moment.
The use of special vdevs is backward compatible for read-only access, so
root pools should be bootable, but exercise caution.

MFC after:	4 weeks
2019-11-21 08:20:05 +00:00
Toomas Soome
c082b391b0 reverting r354594
In our case the structure is more complex and simple static initializer
will upset compiler diagnostics - using memset is still better than building
more complext initializer.
2019-11-12 10:02:39 +00:00
Toomas Soome
e5d9d07948 loader: use struct initializer in vdev_probe().
Hopefully it is a bit more clear this way.
2019-11-10 15:07:36 +00:00
Toomas Soome
3cac32d147 loader: memory leak in vdev_label_read_config()
We need to free the allocated buffer for label.
2019-11-10 15:03:59 +00:00
Toomas Soome
ae3f74e763 loader: clean up the noise around log device
We are ignoring log device but we also do want to have clean code.
2019-11-05 18:35:13 +00:00
Toomas Soome
9a3ea7594b loader: populate nvl with data even when label_txg is 0
We actually do not use that data, at least not now, but we want to
avoid possible surprises.
2019-11-05 18:07:30 +00:00
Toomas Soome
f331eb7d34 loader: allow booting from pool with log device
Apparently people are using log with boot pool, so we can not just
error out there. Still we will need to investigate how to handle
log properly.
2019-11-03 21:36:29 +00:00
Toomas Soome
79a4bf8975 loader: factor out label and uberblock load from vdev_probe, add MMP checks
Clean up the label read.
2019-11-03 21:19:52 +00:00
Toomas Soome
21da9f14f6 loader: zfs.c is missing malloc checks, fix it
malloc() can return NULL, we need to check the return value.
2019-11-03 14:36:16 +00:00
Toomas Soome
0c0a882c7a loader: we do not support booting from pool with log device
If pool has log device, stop there and tell about it.
2019-11-03 13:25:47 +00:00
Toomas Soome
f4ed004573 loader: should check malloc in zfs_dev_open
malloc can return NULL.
2019-11-03 13:03:47 +00:00
Toomas Soome
abca0bd501 loader: calculate physical vdev psize from asize
Since physical device asize is calculated from psize and the asize is stored
in pool label, we can use asize to set the value of psize, which is used to
calculate the location of the pool labels.

MFC after:	1 week
2019-11-03 11:09:06 +00:00
Toomas Soome
e499793e76 Remove duplicate lz4 implementations
Port illumos change: https://www.illumos.org/issues/11667

Move lz4.c out of zfs tree to opensolaris/common/lz4, adjust it to be
usable from kernel/stand/userland builds, so we can use just one single
source. Add lz4.h to declare lz4_compress() and lz4_decompress().

MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D22037
2019-11-02 12:28:04 +00:00
Toomas Soome
4efce32a51 loader: rs_alloc() may return NULL
rs_alloc() in zfs reader code may return NULL, so we need to check the return value and error out if needed.
MFC after:	1 week
2019-10-26 18:29:02 +00:00
Toomas Soome
6b74887f03 loader: zfs_fmtdev can crash when pool discovery did fail and we have no spa
When zfs probe did fail and no spa was created, but zfs_fmtdev() is called,
we will crash while dereferencing spa (NULL pointer dereference).

MFC after:	1 week
2019-10-19 08:08:06 +00:00
Toomas Soome
6e5555adb1 loader: add error check for vdev_indirect calls
We can error out due to memory allocation errors, we can not recover from
those and need to get out.
2019-08-09 19:09:05 +00:00
Toomas Soome
b1b9326846 loader: support com.delphix:removing
We should support removing vdev from boot pool. Update loader zfs reader
to support com.delphix:removing.

Reviewed by:	allanjude
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D18901
2019-08-08 18:08:13 +00:00