A followup to d7a67402a8
For `mount -t zfs -o opts ds mp` command line
some implementations of `mount(8)`, e. g. Busybox in Debian
work as follows:
```
newfstatat(AT_FDCWD, "ds", 0x7fff826f4ab0, 0) = -1
mount("ds", "mp", "zfs", MS_SILENT, NULL) = 0
```
The logic above skips completely `mount.zfs` and prevents us
from reading filesystem properties and applying mount options.
For comparison, the coreutils `mount(8)` implementation does:
```
openat(AT_FDCWD, "/proc/filesystems", O_RDONLY|O_CLOEXEC) = 3
// figure out that zfs is a `nodev` filesystem and look for a helper
newfstatat(AT_FDCWD, "/sbin/mount.zfs" ...) = 0
execve("/sbin/mount.zfs" ...) = 0
```
Using `mount.zfs` in initramfs would help circumvent deficiencies
of some of `mount(8)` implementations. `mount -t zfs` translates
to `mount.zfs` invocation, except for cases when explicitly disabled
by `-i`.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes#13305
What remains is a bunch of anonymous untraceable /tmp/tmp.XXXXXXXXXX
files and bak.root.receive.staff1.3835 from an error branch, testdir.1,
testdir.3, and testroot454470 (with children) in testroot
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13259
bcopy() has a confusing argument order and is actually a move, not a
copy; they're all deprecated since POSIX.1-2001 and removed in -2008,
and we shim them out to mem*() on Linux anyway
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#12996
07a3312f17, which introduced this in
October of 2014, didn't have zpool export -a available; we do
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13093
A simple change, but so many tests break with it,
and those are the majority of this.
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes#13078
PR 1711 (https://github.com/dracutdevs/dracut/pull/1711) adds a zfs_devs
function to dracut to detect the physical devices backing zfs pools. If
this function exists in the version of dracut this module is being
called from, then it does not need to run.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Savyasachee Jha <hi@savyasacheejha.com>
Closes#13121
- Replaced intances of `dracut_install` with `inst_simple`
- Removed calls to `test -x mark_hostonly` because the function is an
inbuilt dracut function
- Removed redundant installation of `systemd-ask-password` and
`systemd-tty-ask-password-agent` because they are already installed by
the systemd module. There is no need to install them again
- Removed multiple calls to the `mark_hostonly` function because the
`inst_simple` has a command-line switch for it
- Cleaned up the installation of the `zpool.cache`, `vdev_id.conf` and
`hostid` files to make the logic easier to follow
- Cleaned up and simplified the systemd service installation logic by
invoking systemctl instead of creating symlinks manually
- Replaced various hard-coded paths with dracut equivalents to better
conform with expected dracut behaviour
- Removed redundant call to `mkdir` (`inst_simple` creates the parent
directory if it does not exist on the destination initrd)
Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Reviewed-by: Andrew J. Hesford <ajh@sideband.org>
Signed-off-by: Savyasachee Jha <hi@savyasacheejha.com>
Closes#13010
Since dracut functions can locate both udev rules and binaries, there is
no point in keeping absolute paths in the module setup script. It also
breaks the --sysroot option in dracut. This commit removes mentions to
absolute paths for binaries and udev rules.
Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Reviewed-by: Andrew J. Hesford <ajh@sideband.org>
Signed-off-by: Savyasachee Jha <hi@savyasacheejha.com>
Closes#13010
Dracut will now fail in initramfs generation if essential files cannot
be installed.
Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Reviewed-by: Andrew J. Hesford <ajh@sideband.org>
Signed-off-by: Savyasachee Jha <hi@savyasacheejha.com>
Closes#13010
Setting up the module involves multiple redundant calls to a bunch of
dracut functions wheich can be combined into one. Additionally, the mass
of code required to load libgcc_s.so* can be replaced with one dracut
function. This has the additional effect of removing errors involving
the non-installation of libgcc_s.so* which are seen on debian bullseye
when using version 2.1.2-1~bpo11+1 from the backports repository.
The systemd binaries are separated out into their own `dracut_install`
function call so they do not get pulled in when dracut does not load the
systemd module.
Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Reviewed-by: Andrew J. Hesford <ajh@sideband.org>
Signed-off-by: Savyasachee Jha <hi@savyasacheejha.com>
Closes#13010
It's an unhelpful naming scheme and one that breaks GitHub autoreadme.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13017
The documentation in the dracut README has grown stale and inaccurate.
Remove the stale content and write a short and useful reference manual.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13012Closes#13017
Change enforced shell type from `dash` to `sh` and excluded
`SC2039` and `SC3043` by default. `local` keyword is accepted by all
POSIX shells from practical point of view. There is no need anymore
to enforce dash so `local` is accepted.
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes#13020
Deprecation of Python versions below 3.6 gives opportunity to unify the
build and install requirements for OpenZFS packages. The minimal
supported Python version is 3.6 as this is the most recent Python
package CentOS/RHEL 7 users can get.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rich Ercolani <rincebrain@gmail.com>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes#12925
@LIBFETCH_SONAME@ is no longer quoted. The C define still is.
Ref: 153f7c9f72
Ref: https://github.com/openzfs/zfs/pull/12835#discussion_r776833743
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Damian Szuberski <szuberskidamian@gmail.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#12922
This reverts commit f6a0dac84a.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Closes#12938
Bullseye shellcheck picks these up as SC2140, and it's right!
@LIBFETCH_SONAME@ is already quoted, so dracut had
"$d/"libcurl.so.4""
and i-t had
""libcurl.so.4""
Partially reverts 34eef3e9a7 (#12760),
which broke this
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#12835
In systemd 249 (sid), sd-a-p processes its arguments in getopt + mode,
so "systemd-ask-password zupa --no-tty" prompts for "zupa --no-tty",
not "zupa" not on the tty, as expected (bullseye, 247).
Ref: 4b1c842d95
Ref: https://github.com/systemd/systemd/pull/19806
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#12870
If the fields to be listed and sorted by are constrained
to those populated by dsl_dataset_fast_stat(), then
zfs list is much faster, as it does not need to open each
objset and reads its properties.
A previous optimization by Pawel Dawidek
(0cee24064a) took advantage
of this to make listing snapshot names sorted only by name
much faster.
However, it was limited to `-o name -s name`, this work
extends this optimization to work with:
- name
- guid
- createtxg
- numclones
- inconsistent
- redacted
- origin
and could be further extended to any other properties
supported by dsl_dataset_fast_stat() or similar, that do
not require extra locking or reading from disk.
Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Pawel Jakub Dawidek <pawel@dawidek.net>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Closes#11080
Given:
/sbin/zfs list filling/a-zvol<TAB> -o space,refratio
The rest of the cmdline gets vored by:
/sbin/zfs list filling/a-zvolcannot open 'filling/a-zvol':
operation not applicable to datasets of this type
With -x (fragment):
+ COMPREPLY=($(compgen -W "$(__zfs_match_snapshot)" -- "$cur"))
+++ __zfs_match_snapshot
+++ local base_dataset=filling/dziadtop-nowe-duchy
+++ [[ filling/dziadtop-nowe-duchy != filling/dziadtop-nowe-duchy ]]
+++ [[ filling/dziadtop-nowe-duchy != '' ]]
+++ __zfs_list_datasets filling/dziadtop-nowe-duchy
+++ /sbin/zfs list -H -o name -s name -t filesystem
-r filling/dziadtop-nowe-duchy
+++ tail -n +2
cannot open 'filling/dziadtop-nowe-duchy':
operation not applicable to datasets of this type
+++ echo filling/dziadtop-nowe-duchy
+++ echo filling/dziadtop-nowe-duchy@
++ compgen -W 'filling/dziadtop-nowe-duchy
This properly completes with:
$ /sbin/zfs list filling/a-zvol<TAB> -o space,refratio
filling/a-zvol filling/a-zvol@
$ /sbin/zfs list filling/a-zvol<cursor> -o space,refratio
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#12820
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Closes#12728
- Remove `SHELLCHECK_IGNORE` in favor of inline suppressions
and more general `SHELLCHECK_OPTS`.
- Exclude `SC2250` (turned on by `--enable=all`) globally
- Pass `--enable=all` to shellcheck for scripts in contrib/: it's
very important to catch errors early in areas that are not easily
testable.
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes#12760
Add properties, similar to pool properties, to each vdev.
This makes use of the existing per-vdev ZAP that was added as
part of device evacuation/removal.
A large number of read-only properties are exposed,
many of the members of struct vdev_t, that provide useful
statistics.
Adds support for read-only "removing" vdev property.
Adds the "allocating" property that defaults to "on" and
can be set to "off" to prevent future allocations from that
top-level vdev.
Supports user-defined vdev properties.
Includes support for properties.vdev in SYSFS.
Co-authored-by: Allan Jude <allan@klarasystems.com>
Co-authored-by: Mark Maybee <mark.maybee@delphix.com>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Closes#11711
Don't exit early in find_rootfs() when zpool.bootfs
is set to `zfs:AUTO`.
Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes#12658
Note that Dropbear supports ed25519 keys since version 2020.79.
See https://github.com/mkj/dropbear/pull/91
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Michael Franzl <michael@franzl.name>
Closes#12715
mlock(2) and munlock(2) operate on memory pages whereas malloc(3)
does not. So if you munlock(2) a malloced memory region, the whole
page containing it is freed. Since this page may contain another
malloced and mlocked memory region, used as a password buffer by a
concurrent running instance of pam_zfs_key, there is a slight chance
of leaking passwords. By using mmap(2) we avoid such problems since
it will return whole pages on page aligned addresses.
Although the above concern may be mostly academical, it is still
better to use mmap(2) for allocating memory since the FreeBSD
documentation suggests to call mlock(2) and munlock(2) on page
aligned addresses, and other implementations even require it.
While here, remove duplicate code in alloc_pw_string() by calling
alloc_pw_size().
Reviewed-by: Felix Dörre <felix@dogcraft.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes#12665
Since both syscalls can fail, add error handling, including EAGAIN.
Reviewed-by: Felix Dörre <felix@dogcraft.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes#12665
When booting with root=zfs:rpool/myrootfs@foosnapshot rollback=1,
myrootfs and its descendants get rolled back to foosnapshot, however
ZFS_BOOTFS still contains myrootfs@foosnapshot instead of the
actually desired value of myrootfs.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Daniel Reichelt <hacking@nachtgeist.net>
Closes#12585Closes#12586
= Motivation
At Delphix we are heavy users of kernel crash dumps that are captured
through a crash kernel that is spawned whenever the main kernel panics.
The way that this works internally is that a certain amount of memory is
reserved while the main system is running so the initramfs of the crash
kernel can be loaded when a panic occurs.
In order to keep reserved memory at minimum we've been historically
trying to identify the binaries that are part of the kernel's initramfs
that are big and finding ways of either making them smaller or do not
include them in the initramfs image. An example is always stripping the
DWARF info of the ZFS kernel module copy that is included in the
initramfs image of both our running and our crash kernel (the difference
in size there is 76MB vs 4MB).
We've recently identified that libzpool has been the largest binary in
our initramfs images - currently sized around 17MB.
= This Patch
The ZFS scripts do not explicitly copy libzpool to initramfs. They copy
zdb which pulls in libzpool as a dependency. Given that both zdb and
libzpool are not really essential for initramfs (e.g. we'll still have
access to the once the root filesystem is unpacked) this patch removes
them from initramfs.
Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Closes#12616
plymouth --command splits the command on spaces which means
that zfs-load-key was getting the filesystem name enclosed
in single quotes (since 13c59bb76) and failing. This commit
fixes it by piping the password directly to the command
similar to how it's done in other scripts (initramfs,
dracut without plymouth).
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Michal Vasilek <michal@vasilek.cz>
Related-to: #9193
Related-to: #9202Closes#12147
Compiling with gcc 11.1.0 produces three new warnings.
Change the code slightly to avoid them.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes#12130Closes#12188Closes#12237
On systemd systems provide an environment generator in order
to respect the zfs_force=1 kernel command line option.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#11403Closes#12195
Also reduce password retries to 3 to match i-t
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#12065Closes#12108
SUSE stores the library at /lib64/libgcc_s.so.1 (/lib/libgcc_s.so.1 for
i686 glibc), which is in the search path
Also relax the /usr/lib path to catch systems similar to SUSE
(/usr/lib64/gcc/x86_64-suse-linux/10/libgcc_s.so) but without
the top-level lib64
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#11750Closes#12108
make_gitrev.sh actually breaks checkbashisms' parser,
which /insists/ that the end-of-line " is actually a string start
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#12101
This checks every file it checked (and a few more),
but explicitly instead of "if it works it works" best-effort
(which wasn't that good anyway)
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#10512Closes#12101
This *will fail* when remounted by the real root
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#12148
