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Commit Graph

492 Commits

Author SHA1 Message Date
Alasdair Kergon
a8d13f9499 Handle decimal digits with --units instead of ignoring them silently.
Fix remaining warnings and compile with -Wpointer-arith.
2011-02-18 23:09:55 +00:00
Zdenek Kabelac
eb4188830e Add debug message for open_count failure
Report  open_count problem as debug.

Function using _node_has_closed_parents decides whether
it's error or could be ignored.
2011-02-18 16:13:56 +00:00
Zdenek Kabelac
2f321615f2 API change - support more const arg
As dm_report_field_string() doesn't modify content of data pointer,
it can be marked as const.

It's slight API change - but doesn't require any change on the user side
and supports wider range of arguments without const casting.
(i.e. we may use as paramater const lv struct this way:  &lv->name)
2011-02-18 14:38:47 +00:00
Zdenek Kabelac
d5e9ddaaee Revert DEBUG_MEM cleanup commit
As functions compiled within this define are apparently stil part of the public API,
(though lvm2 code is never using them unless this define is used for compilation),
keep functions available in the code for now -> revert.
2011-02-08 15:52:00 +00:00
Alasdair Kergon
6c7b95f281 pre-release 2011-02-04 22:07:43 +00:00
Alasdair Kergon
fe7a45c331 Warn if secure data flag requested but not supported by kernel. 2011-02-04 21:26:33 +00:00
Zdenek Kabelac
880507498a Add --addnodeonresume, --addnodeoncreate
Add new function dm_task_set_add_node() to select between 2 types
of node creation in device directory.

DM_ADD_NODE_ON_RESUME is now default and ensures node is created on
resume. Old original behavior is accessible with DM_ADD_NODE_ON_CREATE.
In this case node would be created during dmsetup create --notable.

For the user 2 new options for dmsetup create are added:
[{--addnodeonresume | --addnodeoncreate }]

Properly working node creation on resume is needed for proper operation
stacking and ability to correctly check in which state the device should
after whole udev transation.
2011-02-04 19:33:53 +00:00
Zdenek Kabelac
f5f6dcbc62 Fix operation node stacking for consecutive dm ops
With the ability to stack many operations in one udev transaction -
in same cases we are adding and removing same device at the same time
(i.e. deactivate followed by activate).

This leads to a problem of checking stacked operations:
i.e. remove /dev/node1 followed by create /dev/node1

If the node creation is handled with udev - there is a problem as
stacked operation gives warning about existing node1 and will try to
remove it - while next operation needs to recreate it.

Current code removes all previous stacked operation if the fs op is
FS_DEL - patch adds similar behavior for FS_ADD - it will try to
remove any 'delete' operation if udev is in use.

For FS_RENAME operation it seems to be more complex. But as we
are always stacking FS_READ_AHEAD after FS_ADD operation -
should be safe to remove all previous operation on the node
when udev is running.

Code does same checking for stacking libdm and liblvm operations.

As a very simple optimization counters were added for each stacked ops
type to avoid unneeded list scans if some operation does not exists in
the list.

Enable skipping of fs_unlock() (udev sync) if only DEL operations are staked.
as we do not use lv_info for already deleted nodes.
2011-02-04 19:14:39 +00:00
Milan Broz
2b29daaaa6 Suport DM_SECURE_DATA_FLAG.
It will be user for cryptsetup to ensure buffers are properly
wiped when sending sensitive data (key).
2011-02-04 16:08:11 +00:00
Peter Rajnoha
1e88b1125a Add a debug message when uevent is not generated and we call udev_complete internally. 2011-01-31 11:54:55 +00:00
Zdenek Kabelac
bc49609c6f Compile code for memory debuging only with DEBUG_MEM
When it's not in use - do not compile this code.
Improves lcov code coverage results for this code a lot :)
2011-01-28 16:01:32 +00:00
Zdenek Kabelac
a5c6acf22a Skip NULL check before dm_free
dm_free checks for NULL itself.
2011-01-28 10:16:04 +00:00
Zdenek Kabelac
4b79aeb0ea Initialize pool object for each row
Fix assert abort of dmsetup (when compiled with pool debug)
dmsetup splitname --nameprefixes --noheadings --rows gvg-a2

Move pool begin in the inner loop - otherwise it would using
already 'ended' pool object.
2011-01-25 21:51:30 +00:00
Alasdair Kergon
a8de276520 Replace fs_unlock by sync_local_dev_names to notify local clvmd. (2.02.80)
Introduce sync_local_dev_names and CLVMD_CMD_SYNC_NAMES to issue fs_unlock.
2011-01-12 20:42:50 +00:00
Zdenek Kabelac
b3c6850b1c Define DM_COOKIE_AUTO_CREATE
TODO: Use it also for already written code.
2011-01-10 13:42:31 +00:00
Peter Rajnoha
8d5391f1c3 Export DM_CONTROL_NODE_UMASK and use it while creating /dev/mapper/control. 2011-01-04 14:43:53 +00:00
Zdenek Kabelac
9e06310aab Use const char* for offset calculation
As 'const' types are also passed to macro dm_list_struct_base -
keep offset calculation with const char pointers.
Fixes several gcc constness warnings.
2010-12-20 13:39:12 +00:00
Zdenek Kabelac
303923fbf1 Use const char* const * for dm_regex_create()
Change API interface to accept even completely const array patterns.

This should present no change for libdm users and allows to pass
pattern arrays without cast to const char **.
2010-12-20 13:23:11 +00:00
Peter Rajnoha
7e0db38528 HAVE_SELINUX again 2010-12-13 12:44:09 +00:00
Peter Rajnoha
cb12e3fc9f #ifdef HAVE_SELINUX and #ifdef HAVE_SELINUX_LABEL_H 2010-12-13 12:30:04 +00:00
Peter Rajnoha
c0920fbf2a Missing #elif HAVE_SELINUX 2010-12-13 12:18:38 +00:00
Peter Rajnoha
7dfce0e467 Add new dm_prepare_selinux_context fn to libdevmapper and use it throughout.
Detect existence of new SELinux selabel interface during configure.
Use new dm_prepare_selinux_context instead of dm_set_selinux_context.

We should set the SELinux context before the actual file system object creation.
The new dm_prepare_selinux_context function sets this using the selabel_lookup
fn in conjuction with the setfscreatecon fn. If selinux/label.h interface
(that should be a part of the selinux library) is not found during configure,
we fallback to the original matchpathcon function instead.
2010-12-13 10:43:56 +00:00
Zdenek Kabelac
8865a4c19e Add stack trace for error path
If dm_task_set_cookie() fails print stack trace, but keep going on.
2010-11-30 22:40:19 +00:00
Zdenek Kabelac
5b8abb1240 Add error path stack traces
Check for errors from dm_task_set_name() and dm_task_run().
Add stack traces for error paths.
Return 0 if some error is found.
2010-11-30 22:32:44 +00:00
Zdenek Kabelac
2e3be4f3fd Optimize lookup table read
Reread lookup table only when needed.
2010-11-29 14:25:13 +00:00
Zdenek Kabelac
4cb0f557d9 Remove dead assignment in _step_matcher
'ns' is not used after this assignment and it is reassigned with the following
code, so dropping this assignment.
2010-11-29 12:43:49 +00:00
Zdenek Kabelac
5f3325fcf1 Remove dead assignment in _mirror_emit_segment_line
Remove unused 'r' assignment.
2010-11-29 12:42:10 +00:00
Zdenek Kabelac
cbecd3cd11 Remove dead assignment in dm_tree_node_add_mirror_target_log
'seg' is never used - remove it.
2010-11-29 11:26:00 +00:00
Zdenek Kabelac
8661190736 Cleanup remove test for NULL
dm_free is testing NULL itself
2010-11-29 10:11:50 +00:00
Zdenek Kabelac
f46de65682 Do not call dm_task_destroy with NULL 2010-11-23 18:29:06 +00:00
Zdenek Kabelac
b2594b047b Move va_end(ap) so we do not leave with return -1 without calling it.
Remove unneeded ';'
2010-11-23 15:00:52 +00:00
Alasdair Kergon
ef3d8e18d3 Fix _output_field crash from field_id free with DEBUG_MEM. (Phillip Susi) 2010-11-19 13:17:27 +00:00
Alasdair Kergon
31ed6045f9 lost line 2010-11-02 20:10:35 +00:00
Alasdair Kergon
4b429b6c33 Fix regex optimiser not to ignore RHS of OR nodes in _find_leftmost_common. 2010-11-02 19:56:33 +00:00
Peter Rajnoha
2bea18e504 Use dm_strdup/dm_free instead of strdup/free. 2010-11-01 13:50:51 +00:00
Peter Rajnoha
a83c7816e4 Allocate buffer for reporting functions dynamically to support long outputs.
Fix memory leak of field_id in _output_field function.

There's been a patch added recently to use dynamic allocation for metadata
tags buffer to remove the 4k limit (for writing metadata out). However, when
using reporting commands like vgs and lvs, we still need to fix libdm reporting
functions themselves to support such long outputs. So the buffer used in those
reporting functions is dynamic now.

The patch also includes a fix for field_id memory leak which was found in
the _output_field function.
2010-11-01 13:31:55 +00:00
Zdenek Kabelac
84cc478cc4 Use static indentifier for internal functions
Functions _align_chunk() and  _new_chunk() are used only internally inside
pool-fast.c - so keep them static inside this object file.
2010-10-26 08:59:05 +00:00
Zdenek Kabelac
a636bccaba Use const pointer for return value of dm_basename
Fix return pointer to const as it is created from passed input const pointer.
2010-10-25 13:13:53 +00:00
Alasdair Kergon
1b7750c4bd Use a more-generic name for the new kernel flag so list_devices can share it. 2010-10-25 11:44:20 +00:00
Petr Rockai
d95a85ca36 Implement dmeventd -R, allowing dmeventd to be restarted without losing
monitoring state.
2010-10-20 15:12:12 +00:00
Alasdair Kergon
57a8279442 Add --setuuid to dmsetup rename.
Add dm_task_set_newuuid to set uuid of mapped device post-creation. (pjones)
2010-10-15 01:10:27 +00:00
Alasdair Kergon
ac0252ca07 Add dm_zalloc and use it and dm_pool_zalloc throughout. 2010-09-30 21:06:50 +00:00
Dave Wysochanski
d6fbd0db32 Add macro definitions to report infrastructure for character array length.
Rather than hard code the size of the field, use a #define, so we can re-use.
The #define will be needed in a future patch when we extend the reporting
infrastructure to have 'get' and 'set' functions for each field, allowing
lvm2app functions which query any report field.  In order to provide a
generic lookup based on the field id, we will define a type containing this
field id, and thus, we will need to re-use the length of this string as
it's defined inside libdevmapper.h.
2010-08-20 12:44:30 +00:00
Peter Rajnoha
88b97d8f30 Fix dm-mod autoloading logic to not assume control node is set correctly.
We can't rely on the fact that udev should prepare the node with right major
and minor number to trigger the module autoloading. We have to take into
account that the node could be missing or it could exist with improper
major and minor number assigned (e.g. from previous kernel versions in
an environment with static nodes and without udev). Make any corrections
if needed!
2010-08-18 13:11:56 +00:00
Peter Rajnoha
2d7614322e dm-mod autoloading support is in kernel 2.6.36 actually. 2010-08-16 11:13:18 +00:00
Joe Thornber
0ae41c4412 [REGEX] fix a long standing off-by-one error (found by valgrind-pool) 2010-08-09 10:58:27 +00:00
Joe Thornber
52e1564fdd [MM] Make valgrind aware of the pool allocators
./configure with --enable-valgrind-pool to enable this.
2010-08-09 10:56:01 +00:00
Joe Thornber
fae2c49259 [REGEX] fix bug in matcher that was causing segfault with chars of 0x80 and over. 2010-08-09 10:30:52 +00:00
Joe Thornber
7def56f1e4 [REGEX] Parse regexes that contain chars with value > 0x80
This is a long standing issue.  Fixed by casting a char value to
unsigned char before using it as an index into a bitset.
2010-08-09 10:29:42 +00:00
Zdenek Kabelac
59f8043d7c Fix 'void*' arithmetic warnings in dbg_malloc.c.
Use more readable char[idx] access instead of *char+idx access.
2010-08-03 13:24:07 +00:00