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Commit Graph

749 Commits

Author SHA1 Message Date
Zdenek Kabelac
88681f05f1 radix_tree: api change
Instead of using 'key state & key end' uint8_t* switch to use
void* key, & size_t keylen.  This allows easier adaptation with
lvm code base with way too much casting with every use of function.

Also correctly mark const buffers to avoid compiled warnings and
casting.

Adapt the only bcache user ATM for API change.

Adapt unit test to match changed API.
2024-06-03 15:30:05 +02:00
Zdenek Kabelac
76ca20a9af gcc: drop const specifier from allocated string
Use nornal (char*) for pointers we should free().
2024-06-03 15:30:05 +02:00
Zdenek Kabelac
13e0222ba2 device_id: more use of device_get_uuid
Use function that is caching UUID if kernel provides functionality
from a single ioctl() call.
2024-06-03 15:30:05 +02:00
Zdenek Kabelac
fffff2c2a2 dev-mpath: check uuid with device_get_uuid 2024-06-03 15:30:05 +02:00
Zdenek Kabelac
915dd18361 typo: fix typos
Typo and indent.
2024-06-03 15:30:05 +02:00
Zdenek Kabelac
85e0636623 cleanup: some more MAJOR MINOR unsigned
Finish remaing missing cases where MAJOR/MINOR was casted to (int)
while we can now use it directly as 'unsigned'.
2024-06-03 15:30:05 +02:00
Zdenek Kabelac
9207bae33b device_id: use faster dm_strncpy 2024-05-27 21:34:25 +02:00
Zdenek Kabelac
cd56b04ef6 cleanup: print MAJOR and MINOR as unsigned
Print directly as %u instead of %d with (int) casting.
2024-05-27 15:35:58 +02:00
Zdenek Kabelac
eaa4882924 cleanup: use const for sizeof values 2024-05-27 15:35:58 +02:00
Zdenek Kabelac
9ab2607c7f cleanup: use correct log_sys_debug 2024-05-27 15:35:58 +02:00
Zdenek Kabelac
bbe1b93ed9 hash: increase some default hash table size
Size of these hashes was quite small, so raise the size of
hashed entries to reduce amount of hash collistion.
Select some unique/unused number for hash_create below 8192.
2024-05-27 15:35:57 +02:00
Zdenek Kabelac
01e014a246 device: use device_get_uuid
Replace call to get_dm_uuid_from_sysfs() with use of
device_get_uuid() which gets the same information,
but instead of several syscalls it need either 1 or even 0
when the information is cached with newer kernels.
2024-05-27 15:35:57 +02:00
Zdenek Kabelac
5da282fa23 device: propagate struct cmd_context
For better use of cached data located within cmd_context,
pass this structure from the top level function.
Also add missing '_' for static _dev_cache_index_devs.
No other change here.
2024-05-27 15:35:17 +02:00
Zdenek Kabelac
5c24d6d4db dev-type: use if..else if...
Compare strings till the first match.
2024-05-27 15:16:26 +02:00
Zdenek Kabelac
a198224666 dev-cache: skip scanning known blockless dirs
Skip scan and stat() for dirs and nodes within known /dev/ paths,
where no block devices are located.

Also strlen(_cache.dev_dir) just once.

TODO: add more dirs to _no_scan (configurable via lvm.conf ?)
2024-05-27 15:16:26 +02:00
Zdenek Kabelac
d8e639ecba dev-cache: collapsing slashes counts string size
_collapse_slashes() already goes through the whole string,
so just return now already known string length.
2024-05-27 15:16:26 +02:00
Zdenek Kabelac
caa0e08738 cleanup: use single array for idtype string
Share string array for de/coding idtype.
2024-05-27 15:16:26 +02:00
David Teigland
47f8bda051 lvremove: remove device_id for PVs on LVs
When PVs are created on LVs, remove the devices file entries
for the PVs when the LVs are removed.  In general, the devices
file entries should be removed with lvmdevices --deldev when
the LVs are removed (lvremove is the equivalent of detaching
a device from the system when layering PVs on LVs.)
This change is effectively an automatic lvmdevices --deldev
command that is built into lvremove when the LV has a PV on it.
2024-05-22 15:32:17 -05:00
David Teigland
c609dedc2f Allow system.devices to be automatically created on first boot
An OS installer can create system.devices for the system and
disks, but an OS image cannot create the system-specific
system.devices.  The OS image can instead configure the
image so that lvm will create system.devices on first boot.

Image preparation steps to enable auto creation of system.devices:
- create empty file /etc/lvm/devices/auto-import-rootvg
- remove any existing /etc/lvm/devices/system.devices
- enable lvm-devices-import.path
- enable lvm-devices-import.service

On first boot of the prepared image:
- udev triggers vgchange -aay --autoactivation event <rootvg>
- vgchange activates LVs in the root VG
- vgchange finds the file /etc/lvm/devices/auto-import-rootvg,
  and no /etc/lvm/devices/system.devices, so it creates
  /run/lvm/lvm-devices-import
- lvm-devices-import.path is run when /run/lvm/lvm-devices-import
  appears, and triggers lvm-devices-import.service
- lvm-devices-import.service runs vgimportdevices --rootvg --auto
- vgimportdevices finds /etc/lvm/devices/auto-import-rootvg,
  and no system.devices, so it creates system.devices containing
  PVs in the root VG, and removes /etc/lvm/devices/auto-import-rootvg
  and /run/lvm/lvm-devices-import

Run directly, vgimportdevices --rootvg (without --auto), will create
a new system.devices for the root VG, or will add devices for the
root VG to an existing system.devices.
2024-05-21 16:29:12 -05:00
Zdenek Kabelac
e59c84ca3a gcc: clean cast with -Wbad-function-cast
Makes gcc happier.
2024-05-14 17:59:26 +02:00
Zdenek Kabelac
8da0ab6fc1 cleanup: drop unused declared struct 2024-05-13 02:21:37 +02:00
Zdenek Kabelac
8168b5e71d clenaup: update local static with _ 2024-05-08 01:55:21 +02:00
Zdenek Kabelac
09f70dbb87 cov: avoid TOCTOU
Use just opendir() call and produce error message from errno state.
2024-05-08 01:55:21 +02:00
Zdenek Kabelac
9f4dc4170b cov: sanitize string for file path 2024-05-08 01:55:21 +02:00
Zdenek Kabelac
04b407674c cov: use sscanf buffer size limits
String parsing with buffer size limit.
2024-05-08 01:55:21 +02:00
Zdenek Kabelac
e6f46fafe7 const: use arrays of strings 2
Next set of changes.
2024-05-04 01:01:57 +02:00
Zdenek Kabelac
0bcf2c6514 const: use arrays of strings
Such string is stored directly in '.rodata' section.
2024-05-04 01:01:57 +02:00
Zdenek Kabelac
efe2005022 const: drop static keyword
We don't need relocatable space to store 'const' number.
2024-05-04 01:01:57 +02:00
Zdenek Kabelac
8d1a946a9b tests: update unit-tests
Fix some memleaks.
Drop call of bcache_clear_fd() when bache was not initialized.
2024-04-10 00:04:54 +02:00
Zdenek Kabelac
8545621d39 cov: replace strcpy with memcpy
When we know the size we can avoid using strcpy.
2024-04-10 00:03:09 +02:00
Zdenek Kabelac
d490572410 gcc: clear some complains
Use dm_strncpy() were possible to get rid of gcc compile warnings.
2024-04-08 14:52:23 +02:00
Zdenek Kabelac
41f13b2a3b device_id: add comment for trim 2024-04-04 19:38:21 +02:00
Zdenek Kabelac
f9fefaaabe refactor: update dm_strncpy to _dm_strncpy
For checked versions of dm_strncpy use inline wrapper _dm_strncpy.
2024-04-04 19:38:21 +02:00
Zdenek Kabelac
995ff58903 refactor: remove (void) from dm_strncpy usage
Start to use dm_strncpy() as unchecked version within source tree.
2024-04-04 19:38:21 +02:00
Zdenek Kabelac
46ef562c50 device_id: simplier loop control 2024-03-30 00:17:39 +01:00
Zdenek Kabelac
d65a428f2d device_id: use dm_strncpy
Simplify code.
2024-03-30 00:17:39 +01:00
Zdenek Kabelac
b8d5744c6e deviced_id: use zalloc
While moving to dm_strncpy, in this case since pvid is also
passed to crc calc, make sure whole buffer is always initilized.
2024-03-30 00:17:39 +01:00
Zdenek Kabelac
7ec7d8cf54 cov: reset FILE on error path
Although fclose() fails - we should not be retrying with
already released stucture.
2024-03-28 21:15:38 +01:00
Zdenek Kabelac
f98d2ffe87 device_id: use dm_basename
Avoid problems for other libc like muslc and use dm_basename.

Prototype for basename has been removed from string.h from latest musl [1]
compilers e.g. clang-18 flags the absense of prototype as error. therefore
include libgen.h for providing it.

[1] https://git.musl-libc.org/cgit/musl/commit/?id=725e17ed6dff4d0cd22487bb64470881e86a92e7

Reported-by: Khem Raj <raj.khem@gmail.com>
2024-03-27 00:30:58 +01:00
Zdenek Kabelac
421afd287a cov: ensure namelist is defined
Seems coverity doesn't have good model for scandir.
Let's ensure pointer is seen as defined.
2024-03-25 17:16:00 +01:00
Zdenek Kabelac
ae7b59f509 cov: check for syscall resuls 2024-03-25 16:38:52 +01:00
Zdenek Kabelac
b84702349f cov: ensure buffer is nul ended
Use dm_strncpy() to ensure ending nul.
2024-03-25 16:37:04 +01:00
Zdenek Kabelac
46e013988f cov: check for strftime result 2024-03-25 14:45:09 +01:00
Zdenek Kabelac
3b47ce0a37 devices_id: add some syscall checks
Add debug tracing for syscall failures.
Also switch some log_error to log_warn when command does not exit
with 'error' result and only warns user.
Easier error path handling.
Initialize some vars at declaration time.
2024-03-25 14:43:33 +01:00
Zdenek Kabelac
1ba2d40473 gcc: ensure num has always initilized value 2024-03-25 11:44:36 +01:00
Zdenek Kabelac
bca6f58848 cov: ensure string ends with \0
Use dm_strncpy() that ensures \0 termination.
2024-03-25 11:18:29 +01:00
Zdenek Kabelac
835e8f9d7a cov: fix incorrect error check
Check for NULL pointer.
Fix missing release on error path.
Also dir_fd might be just != -1.
2024-03-25 11:18:29 +01:00
Zdenek Kabelac
ab3c690077 dev-cache: change locales just once 2024-03-25 11:05:05 +01:00
Zdenek Kabelac
4f936f2312 devices: refactor recursive dir create
Make recursive directory path creation reusable via
dir_create_recursive.

While we already have dm_create_dir() - it's not taking mode arg,
so let's make lvm's internal file helper function.
2024-02-19 14:20:39 +01:00
Zdenek Kabelac
d486b379d0 bcache: remove duplicate _wait_all call
Since the  bcache_flush() is supposed to already use _wait_all()
remove duplicated invoce of this function.
2024-02-19 14:20:39 +01:00