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Commit Graph

1080 Commits

Author SHA1 Message Date
Zdenek Kabelac
3c37764333 libdm: use libdm header
User libdm header file.
2018-12-14 15:08:34 +01:00
Zdenek Kabelac
43f8da7699 libdm: print params only for ioctls using them
When preparing ioctl buffer and flatting all parameters,
add table parameters only to ioctl that do process them.

Note: list of ioctl should be kept in sync with kernel code.
2018-11-17 00:30:50 +01:00
Zdenek Kabelac
1ae5bf2b83 libdm: add DM_DEVICE_ARM_POLL
Expose DM_DEVICE_ARM_POLL via standard API enum.
2018-11-17 00:30:50 +01:00
Zdenek Kabelac
10e191fd12 libdm: do not add params for resume and remove
DM_DEVICE_CREATE with table is doing several ioctl operations,
however only some of then takes parameters.
Since _create_and_load_v4() reused already existing dm task from
DM_DEVICE_RELOAD it has also kept passing its table parameters
to DM_DEVICE_RESUME ioctl - but this ioctl is supposed to not take
any argument and thus there is no wiping of passed data - and
since kernel returns buffer and shortens dmi->data_size accordingly,
anything past returned data size remained uncleared in zfree()
function.

This has problem if the user used dm_task_secure_data (i.e. cryptsetup),
as in this case binary expact secured data are erased from main memory
after use, but they may have been left in place.

This patch is also closing the possible hole for error path,
which also reuse same dm task structure for DM_DEVICE_REMOVE.
2018-11-17 00:30:50 +01:00
Marian Csontos
420af27f08 post-release 2018-10-31 15:56:41 +01:00
Marian Csontos
913c28917e pre-release 2018-10-31 15:39:50 +01:00
Marian Csontos
9ed869cce1 post-release 2018-10-10 13:27:16 +02:00
Marian Csontos
f8462cff92 pre-release 2018-10-10 11:26:53 +02:00
Zdenek Kabelac
80e6097ea6 dmeventd: base vdo plugin
Introduce VDO plugin for monitoring VDO devices.

This plugin can be used also by other users, as plugin checks
for UUID prefix 'LVM-' and run  lvm actions only on those
devices.

Non LVM- device are only monitored and log warnings
when usage threshold reaches 80%.
2018-07-09 15:28:32 +02:00
Marian Csontos
264077907e post-release 2018-05-24 15:23:08 +02:00
Marian Csontos
adae8ee1c2 pre-release 2018-05-24 15:13:10 +02:00
Zdenek Kabelac
1287edf626 cleanup: call uname once
Call uname() once and keep result for mirror use-case.
2018-04-20 12:16:58 +02:00
Zdenek Kabelac
30975a3328 libdm: enhance mounted fs detection
btrfs is using fake major:minor device numbers.
try to be smarter and detect used node via DM device name.

This shortens delays, where i.e. lvm2 is asked to deactivate
volume with mounted btrfs as such operation is not retryed
and user is informed about device being in use.
2018-03-23 17:24:58 +01:00
Zdenek Kabelac
043f58452a libdm-stats: fix error messages
When function dm_stats_populate() returns 0 it's an error and needs
log_error() message -  function can't have 'success' returning 0 or
error without reasons.
2018-03-15 10:56:31 +01:00
Zdenek Kabelac
a082ce2613 dmstatus: check nr_regions ahead of find call
Prevent call of dm_stats_populate(), when there has been no
stats region detected for a DM device.
Such skip is evaluated as 'correct' visit of stats call and
not causing 'dmstats' command failure.
2018-03-15 10:54:19 +01:00
Zdenek Kabelac
2b3b486a37 libdm: support for DM_DEBUG_WITH_LINE_NUMBERS
For any libdm tool using default debugging function allow
to show source filename and code line number when this
functionality is available.
2018-03-15 10:49:24 +01:00
Zdenek Kabelac
9be086fbee thin: pass environment to scripts
When dmeventd thin plugin forks a configurable script, switch to use
execvp to pass whole environment present to dmeventd - so all configured
paths present at dmeventd startup are visible to script.

This was likely not a problem for common user enviroment,
however in test suite case variable like LVM_SYSTEM_DIR were
not actually used from test itself but rather from
a system present lvm.conf and this may have cause strange
behavior of a testing script.
2018-03-06 15:35:04 +01:00
Zdenek Kabelac
60b61f2db3 libdm-stats: correct checking of dm_snprintf error
Function dm_snprintf returns -1 on error, while 0 is still
considered valid result code so correcting error path testing.
2018-02-12 22:13:57 +01:00
Zdenek Kabelac
4d4d5bf323 libdm: accept mirror status with userspace word in the line
Just making sure the parser will not stop - although greater level of
support needs to be added (Describing doc seems to be missing however).
2018-02-01 21:56:07 +01:00
Alasdair G Kergon
ea96381534 libdm: Introduce dm_malloc_aligned 2018-01-10 15:48:03 +00:00
Alasdair G Kergon
81be333e9f post-release 2017-12-18 20:43:09 +00:00
Alasdair G Kergon
a1f7a48325 pre-release 2017-12-18 20:36:10 +00:00
Zdenek Kabelac
297d5915c3 libdm: avoid checking status on activation
Variable props.send_messages has 3 states and was not used properly
here.  Activation in this moment does not need to verify thin-pool status
as that has been already checked on preload.
So only if there are some real messages (value 2) call function
for sending them.
2017-12-07 21:00:36 +01:00
Zdenek Kabelac
e447d7ca5e libdm: support for replicator target is dropped
Replicator never really existed in upstream kernel and its support
got deprecated.

Also its support never got finished so no code is supposed to be
using it anyway.

Libdm symbols are remaining, just the implementation will always
return failure - so any user of:

dm_tree_node_add_replicator_dev_target()
dm_tree_node_add_replicator_target().

will now always recieve error message.
2017-12-04 15:38:50 +01:00
Zdenek Kabelac
63368a5064 libdm: watch for failing _info_by_dev
Separate handling of error code from _info_by_dev.
This error can only happeng when we are running out of memory.
In such case there is urgent need to stop any futher proceeding
of command and run to error ASAP.
2017-12-04 15:38:50 +01:00
Zdenek Kabelac
aa68b898ff libdm: preload propagates delayed resume
Propagate delayed resume at least for preload case in a simple way.
Currently  PVMOVE depends on internal logic where 'mirror' with
corelog is 'possible' PVMOVE. In such case resume of 'created'
node is 'delayed'.

This is mostly an ugly internal hack - but for the moment being when we
add propagation for preload - it does work reasonable.

TODO: provide standard API and avoid this internal 'guessing'.
2017-11-24 16:05:21 +01:00
Ondrej Kozina
32e747dd31 dmsetup: hide integrity encryption keys on table output 2017-11-10 15:23:00 +01:00
Alasdair G Kergon
1b6dfd4802 post-release 2017-11-03 04:42:54 +00:00
Alasdair G Kergon
29300e72ee pre-release 2017-11-03 02:28:55 +00:00
Bastian Blank
58b763c99c systemd: remove Install sections from socket-activated services
We always preferred and recommended socket activation for our services
so remove the Install section in related .service units which are unused
in this case and keep only the Install section in associated .socket
units.

Signed-off-by: Bastian Blank <waldi@debian.org>
2017-11-01 15:37:19 +01:00
Alasdair G Kergon
4b0f6829f6 dmsetup: Add unknown device error to dmsetup status.
Treat status the same way as info if provided device name doesn't exist.
2017-10-26 17:47:13 +01:00
Zdenek Kabelac
327d9d59be libdm: fix typo in libdevmapper.pc
Fixing name for RT libraries and using RT_LIBS.
2017-10-18 00:04:06 +02:00
Alasdair G Kergon
a994fc5e50 post-release 2017-10-06 22:16:58 +01:00
Alasdair G Kergon
73b72b8331 pre-release 2017-10-06 22:10:48 +01:00
Zdenek Kabelac
9940c2f754 dmeventd: schedule exit on break
When dmeventd receives SIGTERM/INT/HUP/QUIT it validates if exit is possible.
If there was any device still monitored, such exit request used to
be ignored/refused. This 'usually' worked reasonably well, however if there
is very short time period between last device is unmonitored and signal
reception - there was possibility such EXIT was ignored, as dmeventd has
not yet got into idle state even commands like 'vgchange -an' has already
finished.

This patch changes logic towards scheduling EXIT to the nearest
point when there is no monitored device.

EXIT is never forgotten.

NOTE: if there is only a single monitored device and someone sends
SIGTERM and later someone uses i.e. 'lvchange --refresh' after
unmonitoring dmeventd will exit and new instance needs to be
started.
2017-10-05 10:19:21 +02:00
Peter Rajnoha
096fcb5a6e blkdeactivate: also try to unmount /boot on blkdeactivate -u if on top of supported device
There's nothing special about /boot other than it's used during boot.
But when blkdeactivate is called either on all devices or including a
device where the /boot is on top, we should also include this mount
point when doing unmount before deactivation of supported devices.
2017-09-21 17:15:48 +02:00
Peter Rajnoha
584b4ae38b blk-availability: use blkdeactivate -r wait in blk-availability systemd service/initscript 2017-09-21 17:10:15 +02:00
Peter Rajnoha
95087c8f96 blkdeactivate: add blkdeactivate -r wait option to wait for MD resync/recovery/reshape
The new blkdeactivate -r|mdraidoption wait causes blkdeactivate to wait
for any resync/recovery/reshape that is currently in progress before
deactivating the device.

If this option is used, blkdeactivate calls mdadm -W|--wait before
mdadm -S|--stop.
2017-09-21 17:10:15 +02:00
Peter Rajnoha
7fa0d52262 blkdeactivate: fix blkdeactivate regression with failing DM/MD devs deactivation
Revert dc50f2f4a0.

We're canonicalizing/escaping the names here and we're reusing the
variable name so the code doesn't need to use extra variables and
further assignments that may confuse us. Let's keep the code simple.

The

   local name=(...$name)

is not the same as

   local name
   name=(...$name)

(I know various code-checking tools fuss about this and recommend
the 2nd way, but let's ignore those tools' nitpicking here please.)
2017-09-21 17:10:15 +02:00
Peter Rajnoha
9f34125d5d blkdeactivate: fix --{dm,lvm,mpath}options option name recognition
There was a typo in blkdeactivate --dmoption/--lvmoption/mpathoption,
it had missing "s" at the end and it was not recognized properly, only
short names for the options (-d/-l/-m).
2017-09-21 17:08:44 +02:00
Zdenek Kabelac
a02db1c45a libdm: fix parentheses in assignment + comparison
As reported, fix incorrect placement of parentheses.
TODO: add testing code.
2017-09-20 15:14:16 +02:00
Alasdair G Kergon
d73eddcdc0 dmsetup: Process -S to filter input device lists.
The following commands now pass the device list through a
--select|-S filter before processing:

suspend resume clear wipe_table remove deps status table
2017-09-14 23:41:17 +01:00
Alasdair G Kergon
71dbe0fe26 post-release 2017-09-13 20:46:25 +01:00
Alasdair G Kergon
918f0a92da pre-release 2017-09-13 20:38:29 +01:00
Zdenek Kabelac
0e42b31dc3 libdm: fix errpath for control node creation
When control node failure happens, umask was not restored.
Fix it by using common exit path.
2017-08-22 10:23:29 +02:00
Alasdair G Kergon
827be01758 dmsetup: Add --concise to dmsetup create.
Add the new concise format to dmsetup create, either as a single
command-line parameter or from stdin.

Based on patches submitted by
Enric Balletbo i Serra <enric.balletbo@collabora.com>.
2017-08-04 19:38:34 +01:00
Alasdair G Kergon
e6afe9e782 ioctl: Allow minor without major.
There's no need to insist on a major number being supplied when the
code's going to override it if it's wrong anyway.
2017-08-04 14:45:20 +01:00
Alasdair G Kergon
5fd7c0aa33 dmsetup: Add concise table output format.
Create a new table output format that concisely shows multiple devices
on one line.

dmsetup table --concise [device...]

<dev_name>,<uuid>,<flags>[,<table>]*[;<dev_name>,<uuid>,<flags>[,<table>]*]*

Table lines are separated by commas.
Devices are separated by semi-colons.
Flags is currently 'ro' or 'rw' (and might be extended in a
yet-to-be-defined way in future).
Any comma, semi-colon or backslash within a field is quoted by a
preceding backslash.

The format can later be supplied as input to dmsetup or even to the
booting kernel as an alternative way to set up devices.

Based on patches submitted by
Enric Balletbo i Serra <enric.balletbo@collabora.com>.
2017-07-25 01:13:14 +01:00
Alasdair G Kergon
8e0c5d0cb6 post-release 2017-07-20 17:19:09 +01:00
Alasdair G Kergon
88f1565937 pre-release 2017-07-20 16:57:27 +01:00