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"It seems to me that if the lock is already held by another process when we
enter this code, there is a race between the timeout and the granting. If
the lock is subsequently granted, the process releasing the lock will signal
the wait variable (or whatever) and our process will be scheduled. However,
if the timeout occurs before we are scheduled, the timeout will be delivered
first.
We will have the lock but will forget we have the lock, and never release
it."
Jeremy.
In tdb_wrap_log(), in on occurrence of "debug_level = 0"
instead of "debuglevel = 0" caused me segfaults when
accessing DEBUGLEVEL (which is defined as "*debug_level"...)
Michael
(This used to be commit d9bd894c2ec4faf87e8ff96e27c7e2b8175f9387)
Replace all callers of traverse with this tdb_traverse_delete_fn() and
don't export tdb_traverse_delete_fn() anymore.
Michael
(This used to be commit d4be4e30cd8c3bdc303da30e42280f892a45a8c9)
warning: ignoring return value of 'asprintf', declared with attribute warn_unused_result
(This used to be commit ad37b7b0aee265a3e4d8b7552610f4b9a105434d)
Just a small commit to get a handle on this git thingy. This patch
fixes some missing calls to va_end() to match various calls to va_start()
and VA_COPY().
Tim.
(This used to be commit ec367f307dff7948722b9ac97beb960efd91991f)
an alarm sig would not terminate and could lead
to runaway smbd processes.
Thanks to Dave Daugherty @ Centrify for pointing
this out to us.
Jeremy.
(This used to be commit ef8da1698371c95495add53df81a978df709c88d)
bugs in various places whilst doing this (places that assumed
BOOL == int). I also need to fix the Samba4 pidl generation
(next checkin).
Jeremy.
(This used to be commit f35a266b3cbb3e5fa6a86be60f34fe340a3ca71f)
A new wrapper tdb_validate_open() takes a filename an opens and closes
the tdb before and after calling tdb_validate() respectively.
winbindd_validata_cache_nobackup() now dynamically calls one of
the above functions depending on whether the cache tdb has already
been opened or not.
Michael
(This used to be commit dc0b08e6590caa4974fd4d9f34f39f261d1f1dee)
I had only tested with "net getlocalsid". posix_locking_init() calls this
with a NULL name...
(This used to be commit 3eee1fe28057e2e3da2e9d1506f57f3e35fd37b7)
This makes it possible to set the default hashsize for any tdb. I would
like to remove the "open files database hash size" in favor of this one.
I'll check that removal in with the next commit, please complain/revert
if it's not ok.
Volker
(This used to be commit e9bd7a63a8d462b1fc3bab99ff843e25bffd156b)
If restoring a backup fails due to lack of space, remove the
corrupt tdb previously moved away to "name.corrupt", and retry.
If restoring still fails, move the backup in place instead of
copying it.
Michael
(This used to be commit f81f2bf480a955213be8461636ee6f81643f17b8)
- call tdb_validate on the given tdb.
- if validation is successful, create a backup
return 0 (success) even if the backup fails.
- if validation fails:
- move tdb to name.corrupt (don't exit if this fails)
- look for a valid backup
- if a valid backup is found, restore it, else return -1 (failure)
if restoring succeeds, return 0 (success), else -1 (failure)
Summing up:
If 0 is returned, there is a valid tdb at the given location:
either the original one ore one restrored from a backup.
If -1 is returned, there is no valid tdb at the given location:
Either there is no file at all, or the original file is still
in place (if moving it away failed).
Michael
(This used to be commit 1c36ccd86d85b02f27ec66d37bdf7f04ad760901)
functions did not do so but returned an error. (This is the case when
error occurred deeper than at the level of the content checking done by
the per entry validate_fn.)
Michael
(This used to be commit e56be59947a29d0a5692f3f3bc6c089dd8b4b5d9)
This is a wrapper around tdb_validate, that does backup handling:
* if the given tdb is valid, a backup is created (name.bak)
* if the tdb is invalid, if a valid bakup is found (validated
with the same validation function) under the name "name.bak"
the orignal tdb is moved to name.corrupt and the backup
is restored.
For the backup handling, a variant of the backup_tdb function
from lib/tdb/tools/tdbbackup.c is included in lib/util_tdb.c.
The copy function for the traverse action eliminates the need
to maintain a global success state by using a struct wrapping
the target tdb and a success flag as the private data.
Michael
(This used to be commit ca63a99b6188c0976603dc2852e478cc7a6b2f8b)
from the validating child process down to the parent though the
pipe. All the parent evaluates is the overall success, so the exit
status should do.
Michael
(This used to be commit 9415ea0fde2ff0c801d043ce77b778fceedb6592)
to the caller (winbindd_validate_cache in this case).
Next, there will be a backup handling for the tdb files.
Michael
(This used to be commit 821bc84109625c9d85edee38fa26d16f9f0a0fe2)
back to winbindd_cache.c. The generic mechanism
should open the cache tdb readonly and with default
flags.
Michael
(This used to be commit 062d8c61294a1e9f8588fa8af31954dd286c7bde)
(the current string_tdb_data() creates a non-terminates tdb key from a string!)
- pass TDB_DATA instead of const char *, size_t len to some functions
metze
(This used to be commit 815ef8acdc7f89d30f3fd1812b12bd0e2dc62473)
