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37 Commits

Author SHA1 Message Date
Zdenek Kabelac
b7741f0a83 libdaemon: header cleanup 
Ensure  daemon-io.h is used as a generic header included
with configure defines before other headers.
(In future all lvm2 libraries should settle on a single lib.h header)
Rename couple defines to better match header file names.
 2014-04-18 16:38:49 +02:00
Peter Rajnoha
c84face8ce libdaemon: fix misleading "WARNING: Ignoring unsupported value for expected." when communicating with daemon 
When we're trying to search for certain tree node
in daemon's reply, we default to a blank string ""
if the node is not found. This happens during lvmetad
initialization.

However, when the default blank string is used, we
can't use dm_config_find_str at the same time - the
dm_config_find_str_allow_empty should be used instead.
Otherwise a a warning message:

  "WARNING: Ignoring unsupported value for ..."

is issued.
 2014-03-24 16:47:08 +01:00
Petr Rockai
808a5d945e libdaemon: Fix an invalid memory read. 2013-10-08 23:21:09 +02:00
Zdenek Kabelac
c5957ee2ff cleanup: easier to read loop code 
buffer_write now accepts const pointer
Simplify loops and drop goto when not needed.
 2013-06-18 22:13:41 +02:00
Zdenek Kabelac
155841c349 lvmetad: fix compare function 
Check for enough space in preallocated buffer.
Fixes problem, when lvm code started to suddenly allocate
too big memory chunks.

TODO: lvmetad protocol should announce needed size ahead,
so if metadata have 1MB we are not reallocating memory...
 2013-06-18 22:12:51 +02:00
Zdenek Kabelac
e3d3921779 lvmetad: use dm_ malloc wrappers 
Use matching dm_ functions for internally used buffers.
 2013-06-18 22:11:31 +02:00
Alasdair G Kergon
981962b339 libdaemon: add logging to daemon_open 
Log all conditions encountered in daemon_open().

Only store errno when known to be set.
 2013-01-04 23:29:59 +00:00
Zdenek Kabelac
3e8dbfaecf lvmetad: add check for failure dm_config_write_node 
Detect if dm_config_write_node failed and fail correctly.
 2012-12-15 17:23:27 +01:00
Zdenek Kabelac
399fc1bb33 lvmetad: keep returned struct fully initialized 
Always clear the response structure.
Simplify daemon_reply initialization.
 2012-12-15 17:23:27 +01:00
Zdenek Kabelac
788ac7fa54 libdaemon: check for strdup result 
Detect failure of dm_pool_strdup() and print error in fail path.
Save one extra strchr call - since we already know the distance
for the '=' character.

Drop stack trace from return after log_error().
 2012-12-15 17:23:26 +01:00
Zdenek Kabelac
920352da70 lvmetad: fix leak of append on error path 2012-10-14 23:14:48 +02:00
Zdenek Kabelac
4379365cae lvmetad: fix memory leaks in error paths 
Destroy interator in error path.
Releasy any possible allocated buffer from buffer_append_f
and buffer_append_vf  in error path.
 2012-10-13 19:19:50 +02:00
Zdenek Kabelac
88c547d1ca lvmetad: move initialization in the inner loop 
Set append to NULL in the front of cycle, so the INTERNAL error path
is not leading to double-free of append pointer.
 2012-10-13 19:15:15 +02:00
Zdenek Kabelac
feea5003cc cleanup: remove unneeded headers 
Header do not provide any needed symbols.
 2012-10-13 19:13:25 +02:00
Zdenek Kabelac
5a958655dd lvmetad: fix test for dm_asprintf 2012-10-12 11:36:01 +02:00
Zdenek Kabelac
f2a5d3ae3a lvmetad: validate dm_asprintf in buffer_append_vf 
Check result of dm_asprintf
Check buffer_append result
Declare vars in front
 2012-10-12 10:59:10 +02:00
Zdenek Kabelac
5c792f620b lvmetad: check result of buffer_realloc 2012-10-12 10:59:10 +02:00
Zdenek Kabelac
9ee071705b cleanup: fix compiler warnings 
remove unused vars
move var declarations into the front of functions.
fix some sign warnings
 2012-10-12 10:25:07 +02:00
Petr Rockai
b07df8850a libdaemon: Make buffer handling asymptotically more efficient. 2012-10-11 18:09:41 +02:00
Petr Rockai
a19a595343 libdaemon-client: Fix a memory leak in daemon_send. 2012-10-08 20:35:29 +02:00
Petr Rockai
662a2122f6 libdaemon: Split daemon-shared.[hc] into daemon-io.[hc] and config-util.[hc]. 2012-09-26 17:26:23 +02:00
Petr Rockai
4ece923a4b libdaemonclient: Use log_sys_error in place of perror. 2012-09-26 17:26:23 +02:00
Petr Rockai
7a2a1a7456 libdaemonclient: Use dm_{malloc,free} in place of {malloc,free}. 2012-09-26 17:26:23 +02:00
Petr Rockai
c731bb1ee1 lvmetad: Fix #845269: SEGV on corrupt lvmetad response. 2012-09-26 17:26:23 +02:00
Petr Rockai
c9f56d639b lvmetad: Use "%" PRId64 in place of "%d" for extra clarity. 2012-09-26 17:26:16 +02:00
Petr Rockai
c7b17836ea Implement devices/global_filter. 
The global filter is applied first, and is also applied in pvscan --cache (which
is called from udev rules to keep lvmetad updated). Cf. example.conf.
 2012-09-26 14:49:15 +02:00
Petr Rockai
ea14d5159c libdaemon: Extend and refactor APIs. 
- move common dm_config_tree manipulation functions from lvmetad-core to
  daemon-shared
- add config-tree-based request manipulation APIs to daemon-client
- factor out _v (va_list) variants of most variadic functions in libdaemon
 2012-09-26 14:49:09 +02:00
Marian Csontos
3843f54974 [lvmetad] Continue reading/writing on EINTR 2012-08-02 16:50:37 +02:00
Marian Csontos
49ae67cba3 lvmetad: Skip redundant checks on no input 2012-08-02 16:50:37 +02:00
Zdenek Kabelac
6f3cd63551 cleanup: replace memset with struct initilization 
Simplifies the code, properly detects too long socket paths,
drops unused parameter.
 2012-06-22 13:23:03 +02:00
Peter Rajnoha
bf29fa49d3 Use dm_strncpy instead of plain strncpy while setting the socket path. 
Also check the return value as it meaningless to work with truncated strings.
 2012-04-27 09:52:33 +00:00
Peter Rajnoha
9a2b6bda59 strcpy -> strncpy in common daemon code. 2012-04-10 12:55:37 +00:00
Zdenek Kabelac
c452307543 Few more close and dev_close trace 
Adding (void) where we cannot really report an error.
 2012-03-01 21:12:37 +00:00
Petr Rockai
823268475c Use 64 bit integers whenever extracting numbers from daemon replies. 2012-03-01 19:54:53 +00:00
Alasdair Kergon
7126d8c21b Reflect new file locations, include file updates etc. 2012-02-28 18:35:04 +00:00
Alasdair Kergon
ec6559c93e move daemon files 2012-02-28 18:30:39 +00:00
Alasdair Kergon
6d41ef6ce5 new makefiles 2012-02-28 18:26:40 +00:00