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Commit Graph

173 Commits

Author SHA1 Message Date
Zdenek Kabelac
6bc840fd2a Add check for unlink errors 2010-12-20 14:08:46 +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
693ec4b404 Use one fprintf call for usage print
Replace multiple fprintf calls with multiline one.
2010-11-29 12:15:41 +00:00
Zdenek Kabelac
2e8d681cf2 Remove dead assignment in 'main'
'ret' is never read anywhere - remove it.
2010-11-29 11:23:14 +00:00
Zdenek Kabelac
3a32d104bd Update C declaration () -> (void) 2010-10-26 08:54:37 +00:00
Zdenek Kabelac
d80f8cf41b Fix clang warning for ntohl(*((uint32_t *)buf))
We cast (char*) to (uint32_t*) that changes alignment requierements.
For our case the code has been correct as alloca() returns properly
aligned buffer, however this patch make it cleaner and more readable
and avoids warning generation.
2010-10-25 11:57:06 +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
ac0252ca07 Add dm_zalloc and use it and dm_pool_zalloc throughout. 2010-09-30 21:06:50 +00:00
Alasdair Kergon
470c18847d Remove superfluous NULL pointer tests before dm_free from dmeventd. 2010-08-16 18:19:46 +00:00
Fabio M. Di Nitto
8c4e8a185a Add dm_create_lockfile to libdm to handle pidfiles for all daemons.
Switch dmeventd to use dm_create_lockfile and drop duplicate code.
Allow clvmd pidfile to be configurable.
Switch cmirrord and clvmd to use dm_create_lockfile.
2010-07-13 13:51:01 +00:00
Alasdair Kergon
08f1ddea6c Use __attribute__ consistently throughout. 2010-07-09 15:34:40 +00:00
Alasdair Kergon
bdadde2f7a Use -d to control level of messages sent to syslog by dmeventd.
Change -d to -f to run dmeventd in foreground.
(mornfall)
2010-05-14 14:56:39 +00:00
Alasdair Kergon
3972d7a2a4 pre-release 2010-04-14 18:54:37 +00:00
Alasdair Kergon
9c29f2f509 pre-release 2010-04-14 18:53:04 +00:00
Zdenek Kabelac
6ea4f7dfc0 Add error diagnostic for setenv failure. 2010-04-13 20:54:57 +00:00
Mikulas Patocka
71cb54406a Don't kill the parent if debugging.
If dmeventd runs with -d flag, it doesn't fork into backgroud.
The command kill(getppid(), SIGTERM) attempts to kill the parent dmeventd
process, however, if there is no parent, it kills whatever process spawned
dmeventd. In case of debugging with gdb, the parent is gdb, thus
kill(getppid(), SIGTERM) kills the debugger.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
2010-03-31 12:01:49 +00:00
Zdenek Kabelac
985c7ae39c Force C locale
As we need to use mlockall() enforce "C" locales for dmeventd.
2010-03-30 14:40:30 +00:00
Zdenek Kabelac
532142d214 Fix resouce leak in error path
If the error path of _register_for_event() calls _free_thread_status()
_lib_put() call is missing.
To make thing simpler move this _lib_put() into common error path code.
2010-03-30 14:37:28 +00:00
Zdenek Kabelac
dee5782e76 Remove mlockall() form dmeventd
As the header file <sys/mman.h> was not included in dmeventd.c
thus missed definition of MCL_CURRENT so this patch only makes
it obvious we were not locking memory here.

This patch has no functional change.
Later part of this patch set handles mlockall() via memlock_inc_daemon().
2010-03-30 14:35:40 +00:00
Alasdair Kergon
56d8844068 more fixes 2008-11-04 15:07:45 +00:00
Alasdair Kergon
d4b9af444c more tweaks for dmeventd - not finished yet 2008-11-03 23:01:21 +00:00
Alasdair Kergon
2c44337bd5 Right, a simple build (without options) is working again. 2008-11-03 22:14:30 +00:00
Petr Rockai
8153260792 Add #include <signal.h> to dmeventd.c, fixes compilation on NetBSD. 2008-07-09 13:26:07 +00:00
Jim Meyering
f28fd56f76 libdevmapper, dmeventd: be paranoid about detecting write failure
* dmeventd/dmeventd.c (_set_oom_adj): When writing to /proc/self/oom_adj,
detect failure even if it's hidden behind ferror.  [Using dm_fclose's
extra ferror test here is probably not needed, since the amount written
is nowhere near BUFSIZ, but use it regardless, for consistency. ]
* lib/fs/libdevmapper.c (do_suspend): Detect fclose failure when
writing to suspend.
2007-07-24 14:16:48 +00:00
Petr Rockai
6e23a8aa20 Fix the regression introduced by dmeventd leak fixes. 2007-04-24 13:29:02 +00:00
Petr Rockai
727f266227 Fix some memory leaks in dmeventd. 2007-04-23 15:06:03 +00:00
Alasdair Kergon
c2784df48f Remove unnecessary memset() return value checks. [Jim Meyering] 2007-03-16 14:36:14 +00:00
Alasdair Kergon
112d09deb1 Improve dmeventd messaging protocol: drain pipe and tag messages. 2007-02-02 17:08:51 +00:00
Alasdair Kergon
232da7ecc7 Add some missing close() and fclose() return value checks. 2007-01-25 14:16:20 +00:00
Alasdair Kergon
d28dfb5720 add a dso-private variable to dmeventd interface
more inline docn
2007-01-23 17:38:39 +00:00
Alasdair Kergon
4dcaa2300c Add dm_event_handler_[gs]et_timeout functions.
Streamline dm_report_field_* interface.
2007-01-22 15:03:57 +00:00
Alasdair Kergon
919ab64fdb fix exit status; always print message on child failure 2007-01-19 18:08:36 +00:00
Alasdair Kergon
fcdf2e09a2 Add cmdline debug & version options to dmeventd.
Fix oom_adj handling.
2007-01-19 17:22:17 +00:00
Alasdair Kergon
c63c19a73e stat oom_adj and stay silent if it doesn't exist
dm_event_handler now keeps private copies of strings
2007-01-17 14:45:10 +00:00
Alasdair Kergon
5611829c89 more fixes 2007-01-16 23:03:13 +00:00
Alasdair Kergon
f6af1a67b5 more little fixes 2007-01-16 21:13:07 +00:00
Alasdair Kergon
74885e2203 clean up global mutex usage and fix a race in thread finalisation code
properly clean up thread status when thread terminates from within
2007-01-16 20:27:07 +00:00
Alasdair Kergon
e125e1547f dmeventd oom_adj + reduce thread stack size 2007-01-16 20:13:04 +00:00
Alasdair Kergon
61997bb9bb Add basic reporting functions to libdevmapper. 2007-01-16 18:04:15 +00:00
Alasdair Kergon
d5ec3c8889 reduce some if/else complexity 2007-01-15 22:37:40 +00:00
Alasdair Kergon
528329f199 Fix a malloc error path in dmsetup message. 2007-01-15 22:05:50 +00:00
Alasdair Kergon
6ae178f91c fix recent checkins 2007-01-15 19:47:49 +00:00
Alasdair Kergon
25f063d8b7 fail registration if timeout thread cannot be started 2007-01-15 19:19:31 +00:00
Alasdair Kergon
c7a5306039 static naming 2007-01-15 18:58:40 +00:00
Alasdair Kergon
931d24a4b1 More libdevmapper-event interface changes and fixes.
Rename dm_saprintf() to dm_asprintf().
2007-01-15 18:21:01 +00:00
Alasdair Kergon
3165248642 Lots of dmeventd-related changes. 2007-01-11 21:54:53 +00:00
Alasdair Kergon
616c3eccfd fix last checkin 2007-01-08 15:35:08 +00:00
Alasdair Kergon
5b95f17814 Lots of dmevent changes.
Export dm_basename().
Cope with a trailing space when comparing tables prior to possible reload.
2007-01-08 15:18:52 +00:00
Alasdair Kergon
0c8569edea Fix dmeventd mirror to cope if monitored device disappears. 2006-12-20 14:35:02 +00:00
Alasdair Kergon
2a99b5b816 Avoid a dmeventd compiler warning. 2006-05-11 19:08:02 +00:00
Alasdair Kergon
6657d5b66b Move DEFS into configure.h.
Remove dmsetup line buffer limitation.
2006-05-10 19:38:25 +00:00
Alasdair Kergon
dfb5da937e tweak .so loading messages; extra device_exists() sanity check 2006-04-28 14:08:04 +00:00
Alasdair Kergon
9ab7701215 dmeventd thread/fifo fixes. 2006-03-09 21:33:59 +00:00
Alasdair Kergon
d8f0eeb039 Temporary device_exists() fixes. 2006-02-03 19:44:59 +00:00
Alasdair Kergon
4206c3db2e Use supplied full dso name. 2006-02-03 19:41:34 +00:00
Alasdair Kergon
5e3bd86778 Rename _log to dm_log and export.
Fix misc compile-time warnings.
2006-01-31 14:50:38 +00:00
Alasdair Kergon
db204c51a6 Tidy some comments/messages. 2006-01-27 20:52:21 +00:00
Alasdair Kergon
1ff0ef6945 Fix renamed dso. 2006-01-27 20:51:36 +00:00
Alasdair Kergon
6463fa2993 dmeventd thread termination fix 2006-01-27 20:50:01 +00:00
Alasdair Kergon
dd3ec4e87a dmeventd updates 2005-12-02 15:39:16 +00:00
AJ Lewis
8e6230ddd9 Change the multilog code to toggle between async and sync writes for all
log types.  This means the threaded_syslog type is no longer valid.  A new
fxn multilog_async is available to toggle between the two modes.  If an
app is compiled without pthreads and tries to use async logging, no logging
will occur while async is enabled.

dmeventd has been modified to use the new code

I'm not positive I like the way the async_logger code calls the log fxn,
but it works for now.  Suggestions for other ways to do it would be helpful
2005-05-25 21:08:36 +00:00
Heinz Mauelshagen
9e0419057c Exit after last unregister_for_event() 2005-05-20 13:53:26 +00:00
AJ Lewis
bca1803fea o Changed the multilog API a bit (I warned you)
- multilog_add_type, multilog_del_type, multilog_custom, and
     multilog_init_verbose all have different arguments.
   - Primary change is that caller only passes in config info, and the
     lib keeps track of state internally.  No more exporting of
     'struct log_data'.
   - Custom callers now only get the custom data pointer passed into their
     log fxn (that is set with multilog_custom)
   - Added basic README that describes libmultilog
2005-05-09 18:44:35 +00:00
AJ Lewis
cd4355d8f4 o stick multilog into the dm-event lib and dmeventd code again
o more tweaks to libmultilog calls - the api isn't set in stone yet, so
   don't get too comfortable.
 o not sure the dmeventd in device-mapper/dmeventd works - i've been using
   the one in lib/event/
 o currently both daemons are set to log only to syslog
2005-05-03 21:29:13 +00:00
Heinz Mauelshagen
088e6e29da more dm_get_registered_device() code 2005-05-03 13:50:42 +00:00
Benjamin Marzinski
64f4fd6e2b stopped printing a string after we erased the pointer to it. 2005-05-02 18:43:23 +00:00
Heinz Mauelshagen
c4763cf8c9 Introduce exit() in main() and cleanup signal settings for parent/child 2005-05-02 11:02:19 +00:00
Benjamin Marzinski
d4d51bd6d3 more variable initialization. 2005-04-29 22:12:09 +00:00
Heinz Mauelshagen
d54da54d67 o checking in instrumented code for AJ to follow up on comms and logging
o changed

  int dm_get_next_registered_device(char **dso_name, char **device,
                                    enum event_type *events);

  to

  int dm_get_registered_device(char **dso_name, char **device,
                               enum event_type *events, int next)

  so that the daemon is able to retrive the next one of the list without
  running into locking issues.

o changed dmevent.c to use dm_get_registered_device()

o couldn't test this yet because of the comms issues
  (daemon exits in do_process_request())
2005-04-29 14:56:35 +00:00
Heinz Mauelshagen
96c5c1f9ea first changes to get comms back to work after flock changes 2005-04-29 13:41:25 +00:00
AJ Lewis
871e7fcd1a o Build dmeventd against multilog 2005-04-28 22:47:52 +00:00
Alasdair Kergon
e4fe47bc19 o adds dm_get_next_registered_device() (not functional yet)
to retrieve which devices got registered with the daemon;
  needs locking changes as well
2005-04-28 14:02:30 +00:00
Alasdair Kergon
b0c36cbd57 Prototype for a device-mapper event-handling daemon. 2005-04-27 22:32:00 +00:00