nilfsuser5678 [Fri, 29 Nov 2024 17:27:12 +0000 (17:27 +0000)]
libmount: exec mount helpers with posixly correct argument order
This improves compatibility with non-gnu userspaces.
On systems where the libc provides posix getopt instead of gnu getopt,
mount helpers which use getopt to parse arguments will not parse
options which appear after non-option arguments. This patch ensures
mount/unmount work as expected in this situation.
With --file, shen the file is created by mkswap, stat() fails with -ENOENT
and the st_mode field is not populated, so the IS_REG() check fails. But if
we created by mkswap, we know it's just a regular file and we should apply
the selinux label.
Reported in https://bugzilla.redhat.com/show_bug.cgi?id=2324811#c56.
The directory can be directly used by libuuid, for example, by running
"uuidgen --time" as root, even if the uuidd daemon is not installed.
In this case, we must create a clock.txt file with the uuidd group to
prevent any potential ownership mismatch if the uuidd daemon is
installed later. The 2xxx mode (setgid) forces open(O_CREAT) in
libuuid to create the file with the uuidd group.
Please note that mode 2755 is the standard used for years in RHEL.
Xi Ruoyao [Wed, 3 Apr 2024 07:29:34 +0000 (15:29 +0800)]
lsfd: Refactor the pidfd logic into lsfd-pidfd.c
We'll reuse these logic for pidfd support on Linux >= 6.9. This should
be a no-functional change.
Besides moving the code, this change also renames anon_pidfd_data to
pidfd_data, and removes a redundant nullity check for free (because
free(NULL) will just do nothing per the C standard).
Based on https://github.com/util-linux/util-linux/pull/3018
The syscall numbers should not be hardcoded in the header file. If we
really need them, there is UL_CHECK_SYSCALL() to define the numbers
for different architectures. I doubt it's really necessary. Just
update your kernel header files to get the latest kernel updates ...
Karel Zak [Tue, 2 Jul 2024 09:14:06 +0000 (11:14 +0200)]
lib/fileutils: add ul_basename()
Unfortunately, the basename() function can be affected by the
creativity of different libc authors, resulting in varying behavior
across implementations.
Instead, use a local implementation to ensure consistency and
portability.
Karel Zak [Tue, 2 Jul 2024 10:05:34 +0000 (12:05 +0200)]
Merge branch 'stable/v2.40/autotools' of https://github.com/t-8ch/util-linux into stable/v2.40
* 'stable/v2.40/autotools' of https://github.com/t-8ch/util-linux:
autotools: Properly order install dependencies of pam_lastlog2
autotools: make pam install path configurable
Thomas Weißschuh [Sun, 30 Jun 2024 09:23:53 +0000 (11:23 +0200)]
autotools: Properly order install dependencies of pam_lastlog2
As pam_lastlog2 is relinked during installation, all its dependencies
need to already be installed.
This is the same issue that affected pylibmount which was fixed in
commit 324330aca644 ("build-sys: Properly order install dependencies of pylibmount").
Extend the logic added in that commit to also apply to pam_lastlog2.
While at it, also move the initial definition of
usesecurelib_exec_LTLIBRARIES into Makefile.am.
Also add "exec" to the target name which is recognized by automake to
mark the targets as architecture-specific.
Karel Zak [Tue, 2 Jul 2024 08:39:12 +0000 (10:39 +0200)]
build-sys: _PATH_VENDORDIR workaround
It appears that certain versions of libeconf do not handle calls to
econf_readDirs() with NULL path. Therefore, let's set the default to
"/usr/etc" if no value is defined by using the "--with-vendordir="
option.
Addresses: https://github.com/util-linux/util-linux/issues/3091 Signed-off-by: Karel Zak <kzak@redhat.com>
Nicholas Vinson [Wed, 15 May 2024 15:14:54 +0000 (11:14 -0400)]
Conditionally add uuid_time64 to sym. version map
The symbol uuid_time64 is conditionally defined. It only exists on
32-bit platforms that use the glibc library and enable support for
the 64-bit time_t type.
For all other platforms, the symbol is undefined. As a result, when
ld.lld version 17 or newer is used with default flags, ld.lld will
reject the symbol map with the error:
version script assignment of 'UUID_2.40' to symbol 'uuid_time64'
failed: symbol not defined
To fix this issue, the reference to uuid_time64 is changed to
uuid_time64*. The change to a glob pattern satisifies ld.lld and allows
the library to link.
After fork() the memory of the calling thread is preserved into the new
process. This also includes TLS.
Make sure to reset the cache after a fork to avoid reuse of cached
values.
Only the TLS of the thread calling fork() is relevant as that is the
only thread that gets forked.
New threads will received newly initialized TLS.
Fixes https://github.com/util-linux/util-linux/issues/3009 Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
(cherry picked from commit a3f1255f1891ddbaf3bb6a32af28569c0e6f3b91)
Thomas Weißschuh [Wed, 12 Jun 2024 21:32:15 +0000 (23:32 +0200)]
lib/sysfs: zero-terminate result of sysfs_blkdev_get_devchain()
sysfs_blkdev_get_devchain() does not zero-terminate its result, but the
caller expects a C-string.
Use ul_buffer_get_string() which includes a trailing zero-byte.
Thomas Weißschuh [Thu, 13 Jun 2024 09:39:34 +0000 (11:39 +0200)]
lib/buffer: introduce ul_buffer_get_string()
Some users need a zero-byte-terminated string.
As the buffer internally already maintains a zero-termination, add a
helper function that exposes this to users.
wdctl: always query device node when sysfs is unavailable
When there is no sysfs at all for the watchdog, fall back to reading
from the device node.
This is also useful if the legacy compat /dev/watchdog device which
never has a sysfs interface.
Karel Zak [Mon, 3 Jun 2024 10:33:01 +0000 (12:33 +0200)]
libmount: fix tree FD usage in subdir hook
* Initialize the tree file descriptor in the hook_subdir.c module if
it has not been initialized yet. (hook_mount.c does not open the
tree if the mount.<type> helper will be executed.)
* Move the function to open the tree to context.c to make it more
generic and usable in more places.
Reported-by: Linus Heckemann <git@sphalerite.org> Signed-off-by: Karel Zak <kzak@redhat.com>
(cherry picked from commit 2a684833d723e29af0ba772b3e6917492c69e023)
Chen Qi [Sat, 25 May 2024 03:41:35 +0000 (11:41 +0800)]
libsmartcols/src/Makemodule.am: ensure filter-scanner/paser.c file is newer than the .h file
In released tarball, for filter-scanner/parser, the .h and the .c
file has the same mtime. The 'make' tool thinks .h is newer than
the .c file, thus deciding to remake it. This will not only cause
unnecessary rebuild, but also parallel make error. For example,
after 'make', when running 'make install', the libmount.la and findmnt
are both rebuilt and findmnt building will somethings error out complaining
'libmount.so: no such file or directory' or 'libmount.so: file format
not recognized'.
Touch the generated .c file to ensure it's newer than the .h file.
In this way, in new released tarballs in the future, there will
be no unnecessary remake.
Jordan Williams [Tue, 7 May 2024 14:40:44 +0000 (09:40 -0500)]
meson: Correctly require the Python.h header for the python dependency
The current solution to require the Python.h header works around a bug
in Meson that has been fixed for version 1.4.1 of Meson.
Refer to https://github.com/mesonbuild/meson/issues/12862.
This change uses an explicit check for the Python.h include.
This verifies the required header exists.
This check is only necessary prior to version 1.4.1 of Meson.
Jordan Williams [Thu, 9 May 2024 21:46:58 +0000 (16:46 -0500)]
meson: Only require Python module when building pylibmount
Only the python executable is required for tests.
Version 1.4.1 of Meson will require the Python.h for find_installation.
This will result in the tests requiring Python.h unnecessarily.
Use find_program to find the Python program for the tests instead.
Jordan Williams [Mon, 13 May 2024 12:25:50 +0000 (07:25 -0500)]
meson: Fix build-python option
The build-python option is for controlling whether or not pylibmount is
built.
Unfortunately, commit b6799cc rendered the option unused.
This change uses the build-python option again.
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