* reuse ul_path_* API
* allow to use prefix for sysfs paths, so we can use snapshots from
sysfs for regression tests
Signed-off-by: Karel Zak <kzak@redhat.com>
The goal is to avoid duplicate code in path.c and sysfs.c and make it
possible to define prefix for paths for all sysfs and procfs based
utils. Now we have /proc snapshots (for tests) for lscpu only. It
would be nice to have the same (for sysfs) for lsblk and another tools.
* very simple API to read numbers, strings and symlinks
* based on openat()
pc = ul_new_path("/sys/block/sda");
ul_path_read_u64(pc, &size, "size");
ul_path_read_u64(pc, &lsz, "queue/logical_block_size");
* printf-like API to generate paths, for example:
ul_path_readf_u64(pc, &num, "sda%d/size", partno)
* allow to define prefix to redirect hardcoded paths to another
location, for example:
pc = ul_new_path("/sys/block/sda");
ul_path_set_prefix(pc, "/my/regression/dump");
ul_path_read_u64(pc, &num, "size");
to read /my/regression/dump/sys/block/sda/size
* allow to extend the API by "dialects", for example for sysfs:
pc = ul_new_path(NULL);
sysfs_blkdev_init_path(pc, devno, NULL);
and use ul_path_* functions to read from @pc initialized by
sysfs_blkdev_init_path()
* add test_path binary
Signed-off-by: Karel Zak <kzak@redhat.com>
This patch adds PTUUID and PTTYPE fields to lsblk, that are corresponding
fields to ID_PART_TABLE_UUID and ID_PART_TABLE_TYPE in udev database.
[kzak@redhat.com: - small change in PTUUID description]
Signed-off-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
Inlining code using preprocessor function like macros is bad for
readability, and prone to errors. Besides this is a pager, who cares if
code is few milliseconds slower.
Requestee-by: Karel Zak <kzak@redhat.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
This is rather big change, but that is the only way to do this sort job. To
keep this change relatively understandable only moves global variables to a
state structure.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Earlier commit moved lots of functions to work without declarations, but to
be able to get rid of global variables few more moves is needed.
Reference: a8f98304e6
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Make sure partx exits with a non-0 return code when
it runs into either code-path where getting the partition
table failed (or wasn't even attempted because of previous
error condition).
Change was tested using:
touch /tmp/foobar
partx -s - /tmp/foobar
Previously that was only printing an error/warning message
and then exiting with 0, but after this change it exits
with 1.
Signed-off-by: Andreas Henriksson <andreas@fatal.se>
Reported-by: Juan Céspedes <cespedes@debian.org>
Addresses: https://bugs.debian.org/898426
The big-endian version maps generic "ppc" and "ppc32" aliases to
PER_LINUX32. It seems that we can do the same for little-endian.
Note that SYS_personality does not care about LE/BE, it's 32 or 64 bit.
Signed-off-by: Karel Zak <kzak@redhat.com>
It's possible we erase from the whole device before we erase from the
partition on the same disk:
# wipefs -a /dev/sdc /dev/sdc1
the current code calls re-read PT ioctl immediately after erase (so,
before sdc1 is processed). The result is that sdc1 node is no more
accessible:
# wipefs -a /dev/sdc /dev/sdc1
/dev/sdc: 2 bytes were erased at offset 0x000001fe (dos): 55 aa
/dev/sdc: calling ioctl to re-read partition table: Success
wipefs: error: /dev/sdc1: probing initialization failed: No such file or directory
It seems the most simple solution is to postpone the re-read ioctl and
do it as the last thing.
# wipefs -a /dev/sdc /dev/sdc1
/dev/sdc: 2 bytes were erased at offset 0x000001fe (dos): 55 aa
/dev/sdc1: 2 bytes were erased at offset 0x00000438 (ext4): 53 ef
/dev/sdc: calling ioctl to re-read partition table: Success
The patch also adds a small delay before the re-read ioctl call. It's
not elegant, but without the usleep(25000) the first attempt returns
EBUSY.
Addresses: https://github.com/karelzak/util-linux/issues/598
Signed-off-by: Karel Zak <kzak@redhat.com>
Matias Bjørling wrote:
The current detection code for chunk size assumes that the
underlying device is a device that uses the minor device id
as the partition id, and that the whole device has minor id 0.
This is not true for example null_blk and nvme device drivers.
Let's use sysfs_devno_to_wholedisk() to get whole-disk devno.
Addresses: https://github.com/karelzak/util-linux/pull/646
Reported-by: Matias Bjørling matias.bjorling@wdc.com
Signed-off-by: Karel Zak <kzak@redhat.com>
losetup tries to blindly use specified device as well as search for
the first free device, the result is:
# losetup /dev/loop1 -f /tmp/tfile_loop1
losetup: /dev/loop1: failed to set up loop device: Invalid argument
fixed version:
# losetup /dev/loop10 -f img
losetup: unexpected arguments
Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1566432
Signed-off-by: Karel Zak <kzak@redhat.com>
agetty sets c_iflags according to interaction with serial line in
get_logname(). For --autologin it does not read from the line, so we
have no clue how to set the flags.
The current behavior is to zeroize the flags. Unfortunately, it seems
like bad idea, because the line may be already properly initialized by
kernel (or systemd, etc.).
The new behavior is not touch the flags on --autologin.
Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1252764
Signed-off-by: Karel Zak <kzak@redhat.com>
The commit 0f9f927b6f forces
libsmartcols to use one byte as a minimal column width. This seems
like a bug if the column is empty and without header.
$ printf '🅰️b\n' | column -t -s ':' -o ':'
🅰️b
Fixed version:
$ printf '🅰️b\n' | column -t -s ':' -o ':'
🅰️b
Reported-by: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Karel Zak <kzak@redhat.com>
The previous commit 4ebea84bb1 replaced
all operations by strings, but it does not work for MS_MOVE as this
operation is not supported in fstab by libmount.
Signed-off-by: Karel Zak <kzak@redhat.com>
Karel Zak
Milan Broz
Sami Kerola
Andreas Henriksson
Vaclav Dolezal