Upon review, it was found that the model for malloc() was incorrect.
In addition, several general purpose memory allocation functions were
missing models:
* kmem_vasprintf()
* kmem_asprintf()
* kmem_strdup()
* kmem_strfree()
* spl_vmem_alloc()
* spl_vmem_zalloc()
* spl_vmem_free()
* calloc()
As an experiment to try to find more bugs, some less than general
purpose memory allocation functions were also given models:
* zfsvfs_create()
* zfsvfs_free()
* nvlist_alloc()
* nvlist_dup()
* nvlist_free()
* nvlist_pack()
* nvlist_unpack()
Finally, the models were improved using additional coverity primitives:
* __coverity_negative_sink__()
* __coverity_writeall0__()
* __coverity_mark_as_uninitialized_buffer__()
* __coverity_mark_as_afm_allocated__()
In addition, an attempt to inform coverity that certain modelled
functions read entire buffers was used by adding the following to
certain models:
int first = buf[0];
int last = buf[buflen-1];
It was inspired by the QEMU model file.
No additional false positives were found by this, but it is believed
that the more accurate model file will help to catch false positives in
the future.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes#14048
9a49c6b782 was intended to fix this issue,
but I had missed the case in pam_sm_open_session(). Clang's static
analyzer had not reported it and I forgot to look for other cases.
Interestingly, GCC gcc-12.1.1_p20220625's static analyzer had caught
this as multiple double-free bugs, since another failure after the
failure in zfs_key_config_load() will cause us to attempt to free the
memory that zfs_key_config_load() was supposed to allocate, but had
cleaned up upon failure.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes#13978
Both Clang's Static Analyzer and Synopsys' Coverity would ignore
assertions. Following Clang's advice, we annotate our assertions:
https://clang-analyzer.llvm.org/annotations.html#custom_assertions
This makes both Clang's Static Analyzer and Coverity properly identify
assertions. This change reduced Clang's reported defects from 246 to
180. It also reduced the false positives reported by Coverityi by 10,
while enabling Coverity to find 9 more defects that previously were
false negatives.
A couple examples of this would be CID-1524417 and CID-1524423. After
submitting a build to coverity with the modified assertions, CID-1524417
disappeared while the report for CID-1524423 no longer claimed that the
assertion tripped.
Coincidentally, it turns out that it is possible to more accurately
annotate our headers than the Coverity modelling file permits in the
case of format strings. Since we can do that and this patch annotates
headers whenever `__coverity_panic__()` would have been used in the
model file, we drop all models that use `__coverity_panic__()` from the
model file.
Upon seeing the success in eliminating false positives involving
assertions, it occurred to me that we could also modify our headers to
eliminate coverity's false positives involving byte swaps. We now have
coverity specific byteswap macros, that do nothing, to disable
Coverity's false positives when we do byte swaps. This allowed us to
also drop the byteswap definitions from the model file.
Lastly, a model file update has been done beyond the mentioned
deletions:
* The definitions of `umem_alloc_aligned()`, `umem_alloc()` andi
`umem_zalloc()` were originally implemented in a way that was
intended to inform coverity that when KM_SLEEP has been passed these
functions, they do not return NULL. A small error in how this was
done was found, so we correct it.
* Definitions for umem_cache_alloc() and umem_cache_free() have been
added.
In practice, no false positives were avoided by making these changes,
but in the interest of correctness from future coverity builds, we make
them anyway.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes#13902
Clang's static analyzer found that config.uid is uninitialized when
zfs_key_config_load() returns an error.
Oddly, this was not included in the unchecked return values that
Coverity found.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes#13957
Coverity caught unsafe use of `strcpy()` in `ztest_dmu_objset_own()`,
`nfs_init_tmpfile()` and `dump_snapshot()`. It also caught an unsafe use
of `strlcat()` in `nfs_init_tmpfile()`.
Inspired by this, I did an audit of every single usage of `strcpy()` and
`strcat()` in the code. If I could not prove that the usage was safe, I
changed the code to use either `strlcpy()` or `strlcat()`, depending on
which function was originally used. In some cases, `snprintf()` was used
to replace multiple uses of `strcat` because it was cleaner.
Whenever I changed a function, I preferred to use `sizeof(dst)` when the
compiler is able to provide the string size via that. When it could not
because the string was passed by a caller, I checked the entire call
tree of the function to find out how big the buffer was and hard coded
it. Hardcoding is less than ideal, but it is safe unless someone shrinks
the buffer sizes being passed.
Additionally, Coverity reported three more string related issues:
* It caught a case where we do an overlapping memory copy in a call to
`snprintf()`. We fix that via `kmem_strdup()` and `kmem_strfree()`.
* It caught `sizeof (buf)` being used instead of `buflen` in
`zdb_nicenum()`'s call to `zfs_nicenum()`, which is passed to
`snprintf()`. We change that to pass `buflen`.
* It caught a theoretical unterminated string passed to `strcmp()`.
This one is likely a false positive, but we have the information
needed to do this more safely, so we change this to silence the false
positive not just in coverity, but potentially other static analysis
tools too. We switch to `strncmp()`.
* There was a false positive in tests/zfs-tests/cmd/dir_rd_update.c. We
suppress it by switching to `snprintf()` since other static analysis
tools might complain about it too. Interestingly, there is a possible
real bug there too, since it assumes that the passed directory path
ends with '/'. We add a '/' to fix that potential bug.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes#13913
When receiving full/newfs on existing dataset, then it should be done
with "-F" flag. Its enforced for initial receive in checks done in
zfs_receive_one function of libzfs. Similarly, on resuming full/newfs
recv on existing dataset, it should be done with "-F" flag.
When dataset doesn't exist, then full/new recv is done on newly created
dataset and it's marked INCONSISTENT. But when receiving on existing
dataset, recv is first done on %recv and its marked INCONSISTENT.
Existing dataset is not marked INCONSISTENT. Resume of full/newfs
receive with dataset not INCONSISTENT indicates that its resuming newfs
on existing dataset. So, enforce "-F" flag in this case.
Also return an error from dmu_recv_resume_begin_check() in zfs kernel,
when its resuming full/newfs recv without force.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Chunwei Chen <david.chen@nutanix.com>
Signed-off-by: Jitendra Patidar <jitendra.patidar@nutanix.com>
Closes#13856Closes#13857
Recently, I have been making a push to fix things that coverity found.
However, I was curious what Clang's static analyzer reported, so I ran
it and found things that coverity had missed.
* contrib/pam_zfs_key/pam_zfs_key.c: If prop_mountpoint is passed more
than once, we leak memory.
* module/zfs/zcp_get.c: We leak memory on temporary properties in
userspace.
* tests/zfs-tests/cmd/draid.c: On error from vdev_draid_rand(), we leak
memory if best_map had been allocated by a prior iteration.
* tests/zfs-tests/cmd/mkfile.c: Memory used by the loop is not freed
before program termination.
Arguably, these are all minor issues, but if we ignore them, then they
could obscure serious bugs, so we fix them.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes#13955
Coverity caught these.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes#13889
`uu_panic()` needs to be modelled and the definition of `vpanic()` from
the original coverity model was missing
`__coverity_format_string_sink__()`.
We also model `libspl_assertf()` as part of an attempt to eliminate
false positives.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes#13901
Other projects such as the python project include their coverity models
in their repositories. This provides transparency, which is beneficial
in open source projects. Therefore, it is a good idea to include the
coverity model in our repository too.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes#13884
When the zfs-snapshot-bootfs service attempts to create a snapshot
that already exists, the exit status of the command is non-zero and
the service reports failed to the systemd service manager. This is a
common occurrence if bootfs.snapshot is left set on the kernel command
line and it should not be considered a failure.
This service was originally set to ignore this error by prefixing
the command with - on the ExecStart line, but the leading - appears
to have been dropped in #13359.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Gregory Bartholomew <gregory.lee.bartholomew@gmail.com>
Closes#13769
This type of recv is used to heal corrupted data when a replica
of the data already exists (in the form of a send file for example).
With the provided send stream, corrective receive will read from
disk blocks described by the WRITE records. When any of the reads
come back with ECKSUM we use the data from the corresponding WRITE
record to rewrite the corrupted block.
Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Paul Zuchowski <pzuchowski@datto.com>
Signed-off-by: Alek Pinchuk <apinchuk@axcient.com>
Closes#9372
Simply prevent overwriting root until it needs to be overwritten.
Dracut could change this value before this module is called, but won't
change the kernel command line.
Reviewed-by: Andrew J. Hesford <ajh@sideband.org>
Signed-off-by: Toyam Cox <vaelatern@voidlinux.org>
Closes#13592
Change zfs-snapshot-bootfs.service to zfs-rollback-bootfs.service in
cmdline point 4 of README.md.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Gregory Bartholomew <gregory.lee.bartholomew@gmail.com>
Closes#13609
Due to a missing semicolon on the ExecStart line, it wasn't possible
to specify the snapshot name on the bootfs.{rollback,snapshot}
kernel parameters if the boot dataset name was obtained from the
root=zfs:... kernel parameter.
Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Gregory Bartholomew <gregory.lee.bartholomew@gmail.com>
Closes#13585
Format the `zpool get` command correctly. The -o option must
be followed by "all" or the requested field name.
Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#13602
The zfs-load-module.service service is not currently provided by
the OpenZFS repository so we cannot safely assume it exists.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Thode <mthode@mthode.org>
Closes#13574
This allows ZFS datasets to be delegated to a user/mount namespace
Within that namespace, only the delegated datasets are visible
Works very similarly to Zones/Jailes on other ZFS OSes
As a user:
```
$ unshare -Um
$ zfs list
no datasets available
$ echo $$
1234
```
As root:
```
# zfs list
NAME ZONED MOUNTPOINT
containers off /containers
containers/host off /containers/host
containers/host/child off /containers/host/child
containers/host/child/gchild off /containers/host/child/gchild
containers/unpriv on /unpriv
containers/unpriv/child on /unpriv/child
containers/unpriv/child/gchild on /unpriv/child/gchild
# zfs zone /proc/1234/ns/user containers/unpriv
```
Back to the user namespace:
```
$ zfs list
NAME USED AVAIL REFER MOUNTPOINT
containers 129M 47.8G 24K /containers
containers/unpriv 128M 47.8G 24K /unpriv
containers/unpriv/child 128M 47.8G 128M /unpriv/child
```
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Will Andrews <will.andrews@klarasystems.com>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Signed-off-by: Mateusz Piotrowski <mateusz.piotrowski@klarasystems.com>
Co-authored-by: Allan Jude <allan@klarasystems.com>
Co-authored-by: Mateusz Piotrowski <mateusz.piotrowski@klarasystems.com>
Sponsored-by: Buddy <https://buddy.works>
Closes#12263
The EXTRA_DIST variable is ignored when used in the FALSE conditional
of a Makefile.am. This results in the `make dist` target omitting
these files from the generated tarball unless CONFIG_USER is defined.
This issue can be avoided by switching to use the dist_noinst_DATA
variable which is handled as expected by autoconf.
This change also adds support for --with-config=dist as an alias
for --with-config=srpm and updates the GitHub workflows to use it.
Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#13459Closes#13505
Also make the pyzfs build actually out-of-tree and quiet by default
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Rapptz <rapptz@gmail.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13316
No installation diff, dist lost
-zfs-2.1.99/cmd/fsck_zfs/fsck.zfs
which was distributed erroneously, since it's generated
Also clean gitrev on clean
Also add -e 'any possible bashisms' to default checkbashisms flags,
and fully parallelise it and shellcheck, and it works out-of-tree, too
Also align the Release in the dist META file correctly
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13316
It was originally released in dracut 008 in February 2011;
we can probably drop it now
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13291
Thorough documentation with a dracut.bootup(7)-style flowchart,
dracut.cmdline(7)-style cmdline listing,
and per-file docs like the old README
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13291
This fixes at least one race I got with an encrypted root
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13291
Also don't set ROOTFS_MOUNTED; the final mention was removed in dracut
011 from July 2011
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13291
The only user is mount-zfs.sh (non-systemd systems),
so reduce it to what it needs
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13291
So far, everything parsed root= manually, which meant that while
zfs-parse.sh was updated, and supposedly supported + -> ' ' conversion,
it meant nothing
Instead, centralise parsing, and allow:
root=
root=zfs
root=zfs:
root=zfs:AUTO
root=ZFS=data/set
root=zfs:data/set
root=zfs:ZFS=data/set (as a side-effect; allowed but undocumented)
rootfstype=zfs AND root=data/set <=> root=data/set
rootfstype=zfs AND root= <=> root=zfs:AUTO
So rootfstype=zfs /also/ behaves as expected, and + decoding works
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13291
It was added in the original ae26d0465a ("Add dracut support") commit
in 2011, and was then broken a bit later with the advent of
dracut-zfs-generator, or maybe earlier as part of other churn
Either way, it's broken, and has been in 2.0+ as well, and no-one
complained. Stop pretending we support it at all
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13291
The switch was released in dracut 009 in March 2011,
we can safely get rid of the compatibility hook
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#13291
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
This produces a leaner image, doesn't fail if zdb doesn't exist,
properly handles hostnameless systems, doesn't mention crypto modules
for no reason, doesn't add useless empty executable in hopes an
eight-year-old PR is merged, uses i-t builtins for all copies
Also optimize the checkbashisms filter to spawn one (or a few) awks
instead of one per regular file and remove initramfs/hooks therefrom due
to a command -v false positive
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#12017
Add support for http and https to the keylocation properly to
allow encryption keys to be fetched from the specified URL.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Issue #9543Closes#9947Closes#11956
Afterward, git grep ZoL matches:
* README.md: * [ZoL Site](https://zfsonlinux.org)
- Correct
* etc/default/zfs.in:# ZoL userland configuration.
- Changing this would induce a needless upgrade-check,
if the user has modified the configuration;
this can be updated the next time the defaults change
* module/zfs/dmu_send.c: * ZoL < 0.7 does not handle [...]
- Before 0.7 is ZoL, so fair enough
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Issue #11956
This partly mirrors what the i-t script does (though that mounts all
children, recursively) ‒ /etc, /usr, /lib*, and /bin are all essential,
if present, to successfully invoke the real init, which will then mount
everything else it might need in the right order
The following extreme-case set-up boots w/o issues now:
/ zoot zfs rw,relatime,xattr,noacl
├─/etc zoot/etc zfs rw,relatime,xattr,noacl
├─/usr zoot/usr zfs rw,relatime,xattr,noacl
│ └─/usr/local zoot/usr/local zfs rw,relatime,xattr,noacl
├─/var zoot/var zfs rw,relatime,xattr,noacl
│ ├─/var/lib zoot/var/lib zfs rw,relatime,xattr,noacl
│ ├─/var/log zoot/var/log zfs rw,relatime,xattr,posixacl
│ ├─/var/cache zoot/var/cache zfs rw,relatime,xattr,noacl
│ └─/var/tmp zoot/var/tmp zfs rw,relatime,xattr,noacl
├─/home zoot/home zfs rw,relatime,xattr,noacl
│ └─/home/nab zoot/home/nab zfs rw,relatime,xattr,noacl
├─/boot zoot/boot zfs rw,relatime,xattr,noacl
├─/root zoot/home/root zfs rw,relatime,xattr,noacl
├─/opt zoot/opt zfs rw,relatime,xattr,noacl
└─/srv zoot/srv zfs rw,relatime,xattr,noacl
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#11898
"debug" is also used by systemd itself, and there's really no reason for
the generator to write this much garbage by default
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#11898
This effectively reverts
4fc411f7a3 (part of #6807) and
f6fbe25664 (#9042) ‒
the code itself and latter PR cite symmetry with whole-disk-vdev
behaviour (presumably because rootfs vdevs are rarely whole disks),
but the code is broken for NVME devices (indeed, it'd strip the
controller number instead of the (potential) partition number, turning
"nvme0n1p1" into "nvmen1p1", which would then subsequently fail the
sysfs existence check); it could be fixed to handle those (and any
others) rather easily by dereferencing /sys/class/block/$devname,
but this isn't the place for setting this ‒ as noted in the commit that
removed setting the scheduler by default
(9e17e6f254) ‒ use an udev rule
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#11838
IFS= would break loops in import_pool(), which would fault
any automatic import
Additionally $ZFS_BOOTFS from cmdline would interfere with find_rootfs()
If many pools were present, same thing could happen across multiple
find_rootfs() runs, so bail out early and clean up in error path
Suggested-by: @nachtgeist
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#11278Closes#11838
/dev/zfs is 0:0 666 on most systems, so the [ -w /dev/zfs ] check always
succeeds, but if zfs isn't in $PATH (e.g. when completing from
"/sbin/zfs list" on a regular account) this can lead to error spew like
nabijaczleweli@szarotka:~$ /sbin/zfs list bash: zfs: command not found
@ bash: zfs: command not found
We only do read-only commands, and quite general ones at that,
so there's no need to elevate one way or another.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes#11828
