We already effectively assume that qemu is much newer than the 1.3.0
baseline previously documented. As one example, commit 47857751a7
("lib: direct: Remove test for qemu mandatory locking") assumes that
qemu >= 2.10. Because passt support is desirable in general, let's
assume that qemu is at least version 7.2.0, and document it.
qemu 7.2.0 was released in December 2022, nearly 3 years ago, and RHEL
9 is currently on qemu 9.1.0.
This keeps the SLIRP fallback path in case passt isn't installed, but
we should remove that fallback in future too.
We removed the final uses of custom printf formatters in
commit 0b3c6cc0c0 ("daemon: Remove remaining uses of custom printf %Q
and %R", 2022).
Updates: commit 0b3c6cc0c0
libosinfo changes the naming scheme it uses for SUSE starting with
major version 15. Previously it used names like "sles12" (or
"sles12sp1"), "sled12" for Server and Desktop variants. In 15+ it
uses "sle15" as there are no variants any longer (instead the
installer asks you what variant you want to install). We're only
interested in the Server variant. Change the name that we return to
"sle15" or "sle15sp1".
See: b0fa386699
Fixes: https://issues.redhat.com/browse/RHEL-95791
Thanks: Ming Xie, Victor Toso
Related: https://issues.redhat.com/browse/RHEL-95540
They will be removed in libguestfs 1.58 (the next but one version).
Currently they don't actually compile. The larger problem is that
they don't handle 64 bit quantities properly (using floats instead),
meaning that any disk size or offset above a certain size will be
improperly passed through the API, usually rounded to the nearest
53 bits.
The old btrfs-fsck API used "btrfs check" which appears to be broken
or deprecated. The real tool you should use is "btrfs scrub". We
have already implemented that API, but it is very awkward to use from
libguestfs. In particular there's no existing way to run the scrub
and wait for it to finish.
Fix this by deprecating btrfs-fsck. Implement a new API
btrfs-scrub-full which runs btrfs scrub in the foreground, waits for
it to finish, and handles errors. It's much more like fsck tools in
other filesystems.
Thanks: Eric Sandeen
Fixes: https://issues.redhat.com/browse/RHEL-91936
libmagic (part of the "file" command) was required in earlier versions
of libguestfs, but this requirement was effectively removed in
commit b48da89dd6 ("daemon: Reimplement ‘file_architecture’ API in
OCaml") back in 2017. Or to be more precise, we now use the "file"
command inside the daemon, which may or may not use libmagic but we
no longer link to the library directly.
Reported-by: Mohamed Akram
Fixes: commit b48da89dd6
Related: https://github.com/libguestfs/libguestfs/issues/184
These were previously written in very convoluted C which had to deal
with parsing the crazy output of the "lvm" command. In fact the
parsing was so complex that it was generated by the generator. It's
easier to do this in OCaml.
These are basically legacy APIs. They cannot be expanded and LVM
already supports many more fields. We should replace these with APIs
for getting single named fields from LVM.
These are not required by libguestfs. They were used by virt-builder,
but that tool has now been moved to a separate project
(guestfs-tools).
Fixes: commit 733d2182b6
Replace strange $TEST_FUNCTIONS variable/expansion thing with
something more like what we use in nbdkit, a simple tests/functions.sh
script that gets sourced into each test script.
Update the common submodule to get:
commit 8137d47d0e654065391151eb275e3b64f230f6f5
Author: Richard W.M. Jones <rjones@redhat.com>
Date: Thu Feb 13 11:13:55 2025 +0000
mlcustomize, mltools: Replace $TEST_FUNCTIONS
TEST_FUNCTIONS is being removed from libguestfs and guestfs-tools (it
was removed from virt-v2v a while back). Make the same adjustment in
the common submodule.
(and some other commits which are not relevant to libguestfs)
OCaml 4.08.0 was released on 2019-06-14, over 5 years ago. By
requiring a slightly later OCaml version, we can drop more
compatibility code which was only used by older versions.
Consistent with qemu & libvirt, this drops support for compiling
upstream libguestfs on RHEL 8 (ocaml-4.07.0-4.el8.x86_64).
Qemu policy:
https://www.qemu.org/docs/master/about/build-platforms.html
Libvirt policy:
https://libvirt.org/platforms.html
Update the common submodule, pulling in:
Richard W.M. Jones (4):
qemuopts: Add ability to add raw, unquoted output to qemu scripts
qemuopts: Fix missing break statement
mlstdutils: Remove Option module
Remove test for caml_alloc_initialized_string
After previous changes, this library is no longer used. We have
switched to json-c, for better compatibility with libvirt.
(cherry picked from
guestfs-tools commit e6dcf7e3a7e9170978e57ce6df1b34f92fac5ae3)
This will eventually replace Jansson for all JSON parsing. However
this commit simply introduces the new dependency in the configure
script and documents it.
I chose json-c 0.14 as the baseline since that is the version in RHEL 9.
Probably earlier versions would work.
Since OCaml 4.07 (released 2018-07-10) the always-loaded standard
library module has been called Stdlib. The old Pervasives module was
finally removed in OCaml 5.
$ perl -pi.bak -e 's/Pervasives\./Stdlib./g' -- `git ls-files`
OCaml >= 4.07 is now required.
Also update the common submodule with:
commit d61cd820b49e403848d15c5deaccbf8dd7045370
Author: Jürgen Hötzel
Date: Sat May 20 18:16:40 2023 +0200
Add support for OCaml 5.0
Run this command across the source:
perl -pi.bak -e 's/(20[012][0-9])-20[12][012]/$1-2023/g' `git ls-files`
and remove changes to po{,-docs}/*.po{,t} (these will be regenerated
later when we run 'make dist').
These were added in libguestfs 1.14, but never really used. Only a
handful of probes were available. When I was benchmarking libguestfs
in 2016 I didn't even use these probes because better/simpler
techniques were available.
We have traditionally used custom printf formatters %Q and %R, where
%Q replaces the argument with a shell-quoted string, and %R replaces
the argument with a sysroot-prefixed shell-quoted string. They are
actually pretty useful, but unfortunately only supported by glibc.
We only used them in about a dozen places in the daemon (much code
having been replaced by OCaml which does not need them).
In every remaining case we were constructing a command using code like
this:
asprintf_nowarn (&cmd,
"cd %Q && find -print0 | %s -0 -o -H %s --quiet", ...);
We can replace this with:
char *cmd;
size_t cmd_size;
fp = open_memstream (&cmd, &cmd_size);
fprintf (fp, "cd ");
shell_quote (dir, fp);
fprintf (fp, " && find -print0 | %s -0 -o -H %s --quiet", ...);
fclose (fp);
