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Commit Graph

6561 Commits

Author SHA1 Message Date
Peter Rajnoha
792343a694 lvmetad.socket 2012-02-27 15:45:49 +00:00
Zdenek Kabelac
5627fc8e7b Do not hide deallocation of buffer
As API is passing structures by value, do not leave
the function which created buffer and keeps valid pointer
look like it would be some memory leak and move
free of buffer from inner function - makes more obvious,
how is the memory management handled.
2012-02-27 11:49:16 +00:00
Zdenek Kabelac
c57a9960b5 Add FIXME for misuse in case of dm_event_mask enum.
Using enum for bitmask is not proper solution here.
2012-02-27 11:46:25 +00:00
Zdenek Kabelac
f380cd7d98 Use unsigned type for bitmask
Using report_type_t for bitmask is not correct, since we have not defined types
for all  bit combinations - so switching to unsigned type, since values of
report_type_t enum are unsigned.
2012-02-27 11:45:05 +00:00
Zdenek Kabelac
d2a3352755 Just code move of hash initialization in front of function
Make sure both hash tables are initialized before _read_sections() call.
Presents no functional change (since PV scan phase was not adding LV hashes),
but makes the code easier to handle mem failing case, and static analyzer is
hapier as well.
2012-02-27 11:40:58 +00:00
Zdenek Kabelac
b9141fcefa Add stack traces for lock_vol failures
Adding at least stack traces with some FIXMEs for cases,
where we might want to do something cleaver - maybe fail command
or give user hints something is not going well ?

For remote_backup is stack probably 'good' enough for now.
2012-02-27 11:35:59 +00:00
Zdenek Kabelac
a68f04f41c Check id_write_format result
Currently we never fail with 64byte uuid buffer,
but just stay consitent with rest of the code and check for result.
2012-02-27 11:32:48 +00:00
Zdenek Kabelac
c5b8faf3b1 Explicitely ignore fail error on hash_insert
We cannot do anything better here anyway - we are already in logging function,
so just ignore this issue here - it will most likely stop application later.
2012-02-27 11:31:30 +00:00
Zdenek Kabelac
8918bf2430 Add some log_sys_errors to close() call 2012-02-27 11:28:47 +00:00
Zdenek Kabelac
75f8f3ce8b Nicer cleanup of excl_uuid hash
Since it on exit path, it's not a big difference,
but makes less noise in analyzer and valgrind.
2012-02-27 11:26:25 +00:00
Zdenek Kabelac
530efdb525 Check for vg_name existance
Since vg_read() mda ops could be called with NULL vg_name,
check it before derefence also for pool and format1.
2012-02-27 11:23:15 +00:00
Peter Rajnoha
ceec205594 Systemd is linux-specific - move the supporting code under the 'ifdef linux'.
Some 'defines' used in this specific code were already under an ifdef so this
patch just completes it.
2012-02-27 11:13:51 +00:00
Zdenek Kabelac
9737943c4c Fix missing break
Bug introduced with addition of internal error default case.
Seem like this code is not used.
TODO: add coverage test.
2012-02-27 11:13:48 +00:00
Zdenek Kabelac
d2e33bed94 Add assert for oldname
Code cannot proceed if oldname would be NULL.
Since lvmetad currently doesn't use logging mechanism of lvm to report
internal errors - stay with current code style of lvmetad which uses
plain asserts for cases like this.
2012-02-27 10:19:00 +00:00
Zdenek Kabelac
25555737bd A bit more safe version of sprintf
Use just buffer size limit (it's used for debug only)
2012-02-27 10:17:06 +00:00
Zdenek Kabelac
e1153fd385 Test seg pointer for non-null
As the function accepts NULL for 'seg' parameter,
check for it before dereference.
2012-02-27 10:15:08 +00:00
Zdenek Kabelac
0c35eb915c Move allocation after check for vgid
so there is no mem leak on this error path.
Also actually check if the hash exists.
2012-02-27 10:10:43 +00:00
Zdenek Kabelac
6fa41e8a21 Make force_t enum usage obvious 2012-02-27 10:06:58 +00:00
Zdenek Kabelac
3af1ebe31e Test result of _init_tags. 2012-02-27 10:05:35 +00:00
Zdenek Kabelac
8df2c89cd4 Explicitely ignore result from sync_unlock()
Make it obvious to analyzer - we can't do anything better here anyway.
2012-02-27 10:02:17 +00:00
Zdenek Kabelac
24d39aa142 Always check result of _set_vg_name() 2012-02-27 10:00:23 +00:00
Zdenek Kabelac
7e25b8f932 Drop uname call, it's not used from gulm era. 2012-02-27 09:58:18 +00:00
Zdenek Kabelac
93b087da97 Check allocation result 2012-02-27 09:56:27 +00:00
Zdenek Kabelac
c608e46675 Remove test for pvid
Since pvid is char buffer[] and not pointer,
there is no point to check it for NULL.
2012-02-27 09:54:25 +00:00
Zdenek Kabelac
d5fddeb208 Ignore result of unlock explicitely 2012-02-27 09:52:37 +00:00
Zdenek Kabelac
efe228a42e Just reindent with tabs 2012-02-27 09:51:31 +00:00
Peter Rajnoha
56ca71bd8e Use 'killproc' fn in lvmetad init script (fn provided by 'functions' init script library). 2012-02-27 08:56:46 +00:00
Petr Rockai
7e9fbf5518 Fix a possible SEGV in lvmetad client code, and a minor leak in pvscan
--lvmetad.
2012-02-26 13:42:50 +00:00
Petr Rockai
6857e761cf A bit of documentation for lvmetad_vg_lookup. 2012-02-26 08:50:13 +00:00
Petr Rockai
1943ff9910 - Improve error reporting on lvmetad connection failure.
- Fix a couple of memory leaks in the lvmetad client code.
- Avoid an error in lvmetad_pv_gone when we aren't using lvmetad.
2012-02-26 08:49:40 +00:00
Petr Rockai
98b4241b2f Improve error handling & reporting in common daemon code. 2012-02-26 08:46:28 +00:00
Petr Rockai
f0582ee661 Add tentative documentation of pvscan --lvmetad to the pvscan manpage. 2012-02-26 08:45:07 +00:00
Peter Rajnoha
e6fa4a095e Also remove intermediate lvmetad init script file. 2012-02-24 15:07:00 +00:00
Peter Rajnoha
8c3c020a56 Use '-p PID_FILE' for the status call since the pidfile is in its own lvm subdir and return proper status code. 2012-02-24 13:45:37 +00:00
Peter Rajnoha
97c2309e19 The daemon as well as the first scan must be both executed properly, otherwise it's an error! 2012-02-24 13:11:57 +00:00
Peter Rajnoha
a30491b25f Add LVMetaD init script. 2012-02-24 13:03:50 +00:00
Peter Rajnoha
32c84c8f3d Add skeleton for lvmetad udev rules - 69-dm-lvm-metad.rules.
Why using the order 69:

  - Storage processing in general happens in 60-persistent-storage.rules,
    including the blkid call that adds some usable information we can use
    for filtering and speedup (these rules are part of upstream udev and
    the order is preserved on most distros)

  - There's still some other storage-related processing done after
    60-persistent-storage.rules in general. These might add some detailed
    storage-related information we might use to filter devices effectively
    (e.g. MD udev rules, ...).

  - We need lvmetad rules to be processed before any consumers can use the
    output - so the metadata cache is ready soon enough (e.g. udisks rules).

  - There's no official (upstream udev) document about assigning the order,
    so this number is chosen in best belief it will suit all scenarios.
2012-02-24 09:53:12 +00:00
Petr Rockai
dc4a15bb69 Fix server-side leaks in lvmetad. 2012-02-24 00:24:37 +00:00
Petr Rockai
2a11eea2e1 Clean up the lvmetad state more thoroughly upon shutdown. 2012-02-24 00:11:59 +00:00
Petr Rockai
dc5ba5c392 Fix an error path in daemon_open. 2012-02-24 00:02:54 +00:00
Petr Rockai
726cf41b80 Make the calls to pvscan --lvmetad in the testsuite slightly more civilised. 2012-02-23 23:58:42 +00:00
Petr Rockai
3f694b1265 Couple of improvements in the daemon (common + lvmetad) code:
- some client-side memory leak fixes
- announce and check protocols and protocol versions
2012-02-23 23:52:11 +00:00
Zdenek Kabelac
71f3bbd53f Limit sscanf params with size
Make sure parsed string fits given char buffer.
2012-02-23 22:50:50 +00:00
Zdenek Kabelac
d0a3aa04c8 Unit testing for some string libdm functions
TODO: more functions need to be unit tested.
2012-02-23 22:47:17 +00:00
Zdenek Kabelac
b3d10d7bf1 Introduce dm_strncpy
Should be faster then strncpy - since we could avoid clearing 4KB pages
with each strncpy(...,PATH_MAX).
Also it's easy to check whether string fit - and eventually avoid
to continue working we incomplete string.
2012-02-23 22:45:43 +00:00
Zdenek Kabelac
499a161640 Use const for lv
lv_is_active doesn't needs modifiable LV struct so keep it const.

Remove lv_send_message() left bits from code -
they were never released in 2.02.89.
2012-02-23 22:41:57 +00:00
Zdenek Kabelac
980cf7959c Keep same sign for 's' counter 2012-02-23 22:36:56 +00:00
Zdenek Kabelac
b83e114008 Drop const modifier from fb
It's not useful here to use const - since we need non-const value for unmap.
Also remove now unneeded cast.
2012-02-23 22:36:21 +00:00
Zdenek Kabelac
2960604178 Add explicit cast for time() ret value
To keep all numbers with same sign
2012-02-23 22:31:23 +00:00
Zdenek Kabelac
c817e60796 Use same signed numbers
Keep unsigned aritmetic.

TODO: we should probably switch dm_split_words() to return unsigned numbers.
(minor API libdm change mostly compatible)
2012-02-23 22:30:20 +00:00