https://bugs.openldap.org/show_bug.cgi?id=9378
Issue ID: 9378
Summary: Crash in mdb_put() / mdb_page_dirty()
Product: LMDB
Version: 0.9.26
Hardware: All
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: nate(a)kde.org
Target Milestone: ---
The KDE Baloo file indexer uses lmdb as its database (source code available at
https://invent.kde.org/frameworks/baloo). Our most common crash, with over 100
duplicate bug reports, is in lmdb. Here's the bug report tracking it:
https://bugs.kde.org/show_bug.cgi?id=389848.
The version of lmdb does not seem to matter much. We have bug reports from Arch
users with lmdb 0.9.26 as well as bug reports from people using many earlier
versions.
Here's an example backtrace, taken from
https://bugs.kde.org/show_bug.cgi?id=426195:
#6 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#7 0x00007f3c0bbb9859 in __GI_abort () at abort.c:79
#8 0x00007f3c0b23ba83 in mdb_assert_fail (env=0x55e2ad710600,
expr_txt=expr_txt@entry=0x7f3c0b23e02f "rc == 0",
func=func@entry=0x7f3c0b23e978 <__func__.7221> "mdb_page_dirty",
line=line@entry=2127, file=0x7f3c0b23e010 "mdb.c") at mdb.c:1542
#9 0x00007f3c0b2306d5 in mdb_page_dirty (mp=<optimized out>,
txn=0x55e2ad7109f0) at mdb.c:2114
#10 mdb_page_dirty (txn=0x55e2ad7109f0, mp=<optimized out>) at mdb.c:2114
#11 0x00007f3c0b231966 in mdb_page_alloc (num=num@entry=1,
mp=mp@entry=0x7f3c0727aee8, mc=<optimized out>) at mdb.c:2308
#12 0x00007f3c0b231ba3 in mdb_page_touch (mc=mc@entry=0x7f3c0727b420) at
mdb.c:2495
#13 0x00007f3c0b2337c7 in mdb_cursor_touch (mc=mc@entry=0x7f3c0727b420) at
mdb.c:6523
#14 0x00007f3c0b2368f9 in mdb_cursor_put (mc=mc@entry=0x7f3c0727b420,
key=key@entry=0x7f3c0727b810, data=data@entry=0x7f3c0727b820,
flags=flags@entry=0) at mdb.c:6657
#15 0x00007f3c0b23976b in mdb_put (txn=0x55e2ad7109f0, dbi=5,
key=key@entry=0x7f3c0727b810, data=data@entry=0x7f3c0727b820,
flags=flags@entry=0) at mdb.c:9022
#16 0x00007f3c0c7124c5 in Baloo::DocumentDB::put
(this=this@entry=0x7f3c0727b960, docId=<optimized out>,
docId@entry=27041423333263366, list=...) at ./src/engine/documentdb.cpp:79
#17 0x00007f3c0c743da7 in Baloo::WriteTransaction::replaceDocument
(this=0x55e2ad7ea340, doc=..., operations=operations@entry=...) at
./src/engine/writetransaction.cpp:232
#18 0x00007f3c0c736b16 in Baloo::Transaction::replaceDocument
(this=this@entry=0x7f3c0727bc10, doc=..., operations=operations@entry=...) at
./src/engine/transaction.cpp:295
#19 0x000055e2ac5d6cbc in Baloo::UnindexedFileIndexer::run
(this=0x55e2ad79ca20) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qrefcount.h:60
#20 0x00007f3c0c177f82 in QThreadPoolThread::run (this=0x55e2ad717f20) at
thread/qthreadpool.cpp:99
#21 0x00007f3c0c1749d2 in QThreadPrivate::start (arg=0x55e2ad717f20) at
thread/qthread_unix.cpp:361
#22 0x00007f3c0b29d609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#23 0x00007f3c0bcb6103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
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https://bugs.openldap.org/show_bug.cgi?id=9823
Issue ID: 9823
Summary: syncprov doesn't fallback when deltasync consumer's
offline beyond accesslog depth
Product: OpenLDAP
Version: 2.6.1
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: slapd
Assignee: bugs(a)openldap.org
Reporter: smckinney(a)symas.com
Target Milestone: ---
Configured w/ deltasync. When a consumer goes offline for a duration exceeding
the the logpurge interval, won't fallback into syncrepl, resulting in a dsync.
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https://bugs.openldap.org/show_bug.cgi?id=9795
Issue ID: 9795
Summary: Remove memberof overlay
Product: OpenLDAP
Version: 2.6.1
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: overlays
Assignee: bugs(a)openldap.org
Reporter: quanah(a)openldap.org
Target Milestone: ---
The memberof overlay was deprecated with the release of OpenLDAP 2.5. It
should be removed prior for the next minor release (i.e., 2.7)
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https://bugs.openldap.org/show_bug.cgi?id=9660
Issue ID: 9660
Summary: back-mdb Permission denied => Restore from backup
Product: OpenLDAP
Version: 2.5.7
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: backends
Assignee: bugs(a)openldap.org
Reporter: geert.hendrickx(a)telenetgroup.be
Target Milestone: ---
Cosmetic issue:
When an mdb database has incorrect ownership or permissions (typically after
slapadd as root), back-mdb fails with:
mdb_db_open: database "dc=my-domain,dc=com" cannot be opened: Permission denied
(13). Restore from backup!
"Permission denied" is correct, but "Restore from backup" is maybe not the most
appropriate advice. ;-)
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https://bugs.openldap.org/show_bug.cgi?id=9920
Issue ID: 9920
Summary: MDB_PAGE_FULL with master3 (encryption) because there
is no room for the authentication data (MAC)
Product: LMDB
Version: unspecified
Hardware: x86_64
OS: Mac OS
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: info(a)parlepeuple.fr
Target Milestone: ---
Created attachment 915
--> https://bugs.openldap.org/attachment.cgi?id=915&action=edit
proposed patch
Hello,
on master3, using the encryption at rest feature,
I am testing as follow:
- on a new named database, i set the encryption function with
mdb_env_set_encrypt(env, encfunc, &enckey, 32)
- note that I chose to have a size parameter (The size of authentication data
in bytes, if any. Set this to zero for unauthenticated encryption mechanisms.)
of 32 bytes.
- I add 2 entries on the DB, trying to saturate the first page. I chose to add
a key of 33 Bytes and a value of 1977 Bytes, so the size of each node is 2010
Bytes (obviously the 2 keys are different).
- This passes and the DB has just one leaf_pages, no overflow_pages, no
branch_pages, an a depth of 1.
- If I add one byte to the values I insert (starting again from a blank DB),
then , instead of seeing 2 overflow_pages, I get an error : MDB_PAGE_FULL.
- this clearly should not have happened.
- Here is some tracing :
add to leaf page 2 index 0, data size 48 key size 7 [74657374646200]
add to leaf page 3 index 0, data size 1978 key size 33
[000000000000000000000000000000000000000000000000000000000000000000]
add to branch page 5 index 0, data size 0 key size 0 [null]
add to branch page 5 index 1, data size 0 key size 33
[000000000000000000000000000000000000000000000000000000000000000000]
add to leaf page 4 index 0, data size 1978 key size 33
[000000000000000000000000000000000000000000000000000000000000000000]
add to leaf page 4 index 1, data size 1978 key size 33
[020202020202020202020202020202020202020202020202020202020202020202]
not enough room in page 4, got 1 ptrs
upper-lower = 2020 - 2 = 2016
node size = 2020
Looking at the code, I understand that there is a problem at line 9005 :
} else if (node_size + data->mv_size > mc->mc_txn->mt_env->me_nodemax) {
where me_nodemax is incorrect, as it is not taking into account that some bytes
will be needed for the MAC authentication code, which size is in
env->me_esumsize.
me_nodemax is calculated at line 5349:
env->me_nodemax = (((env->me_psize - PAGEHDRSZ ) / MDB_MINKEYS) & -2)
- sizeof(indx_t);
So I substract me_esumsize with a "- env->me_esumsize" here:
env->me_nodemax = (((env->me_psize - PAGEHDRSZ - env->me_esumsize) /
MDB_MINKEYS) & -2)
- sizeof(indx_t);
I also substract it from me_maxfree_1pg in the line above, and in pmax in line
10435.
I do not know if my patch is correct, but it solves the issue.
Maybe there are other places in the code where the me_esumsize should be
substracted from the available size. By example, when calculating the number of
overflow pages in OVPAGES, it does not take into account me_esumsize, but I
think it is ok, because there is only one MAC for the entire set of OV pages,
and there is room for it in the first OV page.
See the attached proposed patch.
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https://bugs.openldap.org/show_bug.cgi?id=9717
Issue ID: 9717
Summary: The RADIUSOV overlay can be incorporated into OpenLDAP
Product: OpenLDAP
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: contrib
Assignee: bugs(a)openldap.org
Reporter: rdubner(a)symas.com
Target Milestone: ---
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https://bugs.openldap.org/show_bug.cgi?id=9719
Issue ID: 9719
Summary: refreshOnly sends empty cookie when client up to date
Product: OpenLDAP
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: overlays
Assignee: bugs(a)openldap.org
Reporter: ondra(a)mistotebe.net
Target Milestone: ---
Syncprov will send an empty cookie if the consumer has the same cookie as
provider. To the best of my knowledge this is not in line with RFC4533 and
consumers would effectively drop their cookie when the search finishes.
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https://bugs.openldap.org/show_bug.cgi?id=9786
Issue ID: 9786
Summary: liblber: missing export of ber_pvt_wsa_err2string
Product: OpenLDAP
Version: 2.6.1
Hardware: All
OS: Windows
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: libraries
Assignee: bugs(a)openldap.org
Reporter: tobias.junghans(a)veyon.io
Target Milestone: ---
When building (cross-compiling) OpenLDAP via GCC/mingw-w64, an undefined
reference to ber_pvt_wsa_err2string() is reported when libldap.dll is linked.
This can be fixed easily by adding ber_pvt_wsa_err2string() to
libraries/liblber/lber.map
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https://bugs.openldap.org/show_bug.cgi?id=9902
Issue ID: 9902
Summary: Make max index DBs for back-mdb configurable
Product: OpenLDAP
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: backends
Assignee: bugs(a)openldap.org
Reporter: quanah(a)openldap.org
Target Milestone: ---
From ITS#9895:
Currently there is a hardcoded limit of 128 index DBs in back-mdb. Some sites
want more than this (although there's no evidence they actually use more than
128 attributes in all of their applications' search filters).
For 2.5/2.6 we can simply double the constant. For 2.7 consider making it
configurable.
Note that increasing the number increases the size of an LMDB transaction
structure, and also increases the time needed to initialize it whenever
creating a transaction, so it's a bad idea to just set this to an arbitrarily
large number.
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https://bugs.openldap.org/show_bug.cgi?id=9881
Issue ID: 9881
Summary: Ability to track last authentication for database
objects
Product: OpenLDAP
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: slapd
Assignee: bugs(a)openldap.org
Reporter: quanah(a)openldap.org
Target Milestone: ---
For simple binds, we have the ability to track the last success via the
lastbind functionality (pwdLastSuccess attribute). However this doesn't allow
one to see when an object that exists in a database last authenticated via
SASL.
It would be useful to add similar functionality for SASL binds.
This can be useful information that allows one to tell if an object is being
actively authenticated to (generally, users and system accounts, etc).
Obviously if something is directly mapped to an identity that doesn't exist in
the underlying DB, that cannot be tracked.
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