https://bugs.openldap.org/show_bug.cgi?id=9211
Bug ID: 9211
Summary: Relax control is not consistently access-restricted
Product: OpenLDAP
Version: 2.4.49
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: slapd
Assignee: bugs(a)openldap.org
Reporter: ryan(a)openldap.org
Target Milestone: ---
The following operations can be performed by anyone having 'write' access (not
even 'manage') using the Relax control:
- modifying/replacing structural objectClass
- adding/modifying OBSOLETE attributes
Some operations are correctly restricted:
- adding/modifying NO-USER-MODIFICATION attributes marked as manageable
(Modification of non-conformant objects doesn't appear to be implemented at
all.)
In the absence of ACLs for controls, I'm of the opinion that all use of the
Relax control should require manage access. The Relax draft clearly and
repeatedly discusses its use cases in terms of directory _administrators_
temporarily relaxing constraints in order to accomplish a specific task.
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https://bugs.openldap.org/show_bug.cgi?id=9204
Bug ID: 9204
Summary: slapo-constraint allows anyone to apply Relax control
Product: OpenLDAP
Version: 2.4.49
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: overlays
Assignee: bugs(a)openldap.org
Reporter: ryan(a)openldap.org
Target Milestone: ---
slapo-constraint doesn't limit who can use the Relax control, beyond the global
limits applied by slapd. In practice, for many modifications this means any
configured constraints are advisory only.
In my opinion this should be considered a bug, in design if not implementation.
I expect many admins would not read the man page closely enough to realize the
behaviour does technically adhere to the letter of what's written there.
Either slapd should require manage privileges for the Relax control globally,
or slapo-constraint should perform a check for manage privilege itself, like
slapo-unique does.
Quoting ando in https://bugs.openldap.org/show_bug.cgi?id=5705#c4:
> Well, a user with "manage" privileges on related data could bypass
> constraints enforced by slapo-constraint(5) by using the "relax"
> control. The rationale is that a user with manage privileges could be
> able to repair an entry that needs to violate a constraint for good
> reasons. Note that the user:
>
> - must have enough privileges to do it (manage)
>
> - must inform the DSA that intends to violate the constraint (by using
> the control)
but such privileges are currently not being required.
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https://bugs.openldap.org/show_bug.cgi?id=9640
Issue ID: 9640
Summary: ACL privilege for MOD_INCREMENT
Product: OpenLDAP
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: slapd
Assignee: bugs(a)openldap.org
Reporter: michael(a)stroeder.com
Target Milestone: ---
I'm using LDAP write operations with MOD_INCREMENT with pre-read-control for
uidNumber/gidNumber generation.
I'd like to limit write access to an Integer attribute "nextID" to
MOD_INCREMENT, ideally even restricting the de-/increment value.
(Uniqueness is achieved with slapo-unique anyway but still I'd like to avoid
users messing with this attribute).
IMHO the ideal solution would be a new privilege "i".
Example for limiting write access to increment by one and grant read access for
using read control:
access to
attrs=nextID
val=1
by group=... =ri
Example for decrementing by two without read:
access to
attrs=nextID
val=-2
by group=... =i
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https://bugs.openldap.org/show_bug.cgi?id=9739
Issue ID: 9739
Summary: Undefined reference to ber_sockbuf_io_udp in 2.6.0
Product: OpenLDAP
Version: 2.6.0
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: build
Assignee: bugs(a)openldap.org
Reporter: simon.pichugin(a)gmail.com
Target Milestone: ---
While I was trying to build OpenLDAP 2.6 on Fedora Rawhide I've got the error
message:
/usr/bin/ld: ./.libs/libldap.so: undefined reference to
`ber_sockbuf_io_udp'
I've checked commits from https://bugs.openldap.org/show_bug.cgi?id=9673 and
found that 'ber_sockbuf_io_udp' was not added to
https://git.openldap.org/openldap/openldap/-/blob/master/libraries/liblber/…
I've asked on the project's mailing list and got a reply:
"That symbol only exists if OpenLDAP is built with LDAP_CONNECTIONLESS
defined, which is not a supported feature. Feel free to file a bug report
at https://bugs.openldap.org/"
https://lists.openldap.org/hyperkitty/list/openldap-technical@openldap.org/…
Hence, creating the bug.
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https://bugs.openldap.org/show_bug.cgi?id=9619
Issue ID: 9619
Summary: mdb_env_copy2 with MDB_CP_COMPACT in mdb.master3
produces corrupt mdb file
Product: LMDB
Version: 0.9.29
Hardware: All
OS: Windows
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: kriszyp(a)gmail.com
Target Milestone: ---
When copying an LMDB database with mdb_env_copy2 with the MDB_CP_COMPACT with
mdb.master3, the resulting mdb file seems to be corrupt and when using it in
LMDB, I get segmentation faults. Copying without the compacting flag seems to
work fine. I apologize, I know this is not a very good issue report, as I
haven't had a chance to actually narrow this down to a more
reproducible/isolated case, or look for how to patch. I thought I would report
in case there are any ideas on what could cause this. The segmentation faults
always seem to be memory write faults (as opposed to try fault on trying to
read). Or perhaps the current backup/copying functionality is eventually going
to be replaced by incremental backup/copying anyway
(https://twitter.com/hyc_symas/status/1315651814096875520). I'll try to update
this if I get a chance to investigate more, but otherwise feel free to
ignore/consider low-priority since the work around is easy.
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https://bugs.openldap.org/show_bug.cgi?id=9291
Issue ID: 9291
Summary: Detection of corrupted database files
Product: LMDB
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: markus(a)objectbox.io
Target Milestone: ---
Let's assume we have to deal with a corrupted database for whatever reason
(e.g. broken hardware or file system). Current behavior seems to be mostly
undefined, which is understandable as it's not known what is broken (e.g. there
are no checksums).
For example, I'm seeing a SIGBUS in mdb_page_touch because the cursor's top
page (mp) is pointing to invalid memory (0x7f99cf004000) during a commit:
mdb_page_touch mdb.c:2772
mdb_page_search mdb.c:6595
mdb_freelist_save mdb.c:3575
mdb_txn_commit mdb.c:4060
Cursor data at that point: mc_snum = 1, mc_top = 0; myki[0] = 0
A SIGBUS is troublesome as it crashes the process, and I wonder if there are
other ways to detect such inconsistencies. If that be possible there could be
user-specific handling in place. E.g. a user might start a new database file.
This issue was reported by our users, which also provided DB files:
https://github.com/objectbox/objectbox-java/issues/859
I did not find a lot of consistency checks besides MDB_PAGE_NOTFOUND and
MDB_CORRUPTED. Also, I think there's no current way to thoroughly check a DB
file (e.g. like fsck for the DB file)?
My first idea other than checksums was to walk through the branch pages from
the root and check if the referenced pages are within reasonable bounds. Also
check the page content (e.g. nodes, flags). Additionally (optionally?), it
should be possible to check that the key values are actually sorted.
So, it boils down to 3 points in summary:
1.) If there no way to check the DB file for consistency yet(?), which approach
do you think would make sense? There might be two modes; one for a through
check through all data, and a quick check that does not take long and could be
e.g. done when opening the DB. Goal is to avoid process crashes and let users
handle the situation.
2.) In general, is it possible to add more consistency checks in regular DB
operations?
3.) Could the the particular situation (for which I provided the stack trace)
detected (e.g. is myki[0] = 0 legal here?)
I'd be happy to provide a patch if you provide some direction where you want to
take that.
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https://bugs.openldap.org/show_bug.cgi?id=9388
Issue ID: 9388
Summary: mdb_stat for DupSort DBI shows incorrect data
Product: LMDB
Version: 0.9.26
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: AskAlexSharov(a)gmail.com
Target Milestone: ---
It doesn't include pages pages used for values.
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https://bugs.openldap.org/show_bug.cgi?id=9223
Bug ID: 9223
Summary: Add support for incremental backup
Product: LMDB
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: quanah(a)openldap.org
Target Milestone: ---
For LMDB 1.0, add support for incremental backups
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https://bugs.openldap.org/show_bug.cgi?id=9769
Issue ID: 9769
Summary: Patch new feature batch get
Product: LMDB
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: rouzier(a)gmail.com
Target Milestone: ---
Created attachment 859
--> https://bugs.openldap.org/attachment.cgi?id=859&action=edit
New functionality mdb_cursor_get_batch
New functionality mdb_cursor_get_batch
mdb_cursor_get_batch retrieves a page worth of key/values.
This is to reduce the number of function calls when doing a scan of the
database.
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https://bugs.openldap.org/show_bug.cgi?id=9360
Issue ID: 9360
Summary: MDB_BAD_TXN: Transaction must abort, has a child, or
is invalid
Product: LMDB
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: spam(a)markandruth.co.uk
Target Milestone: ---
I have 2 python scripts writing to a database (lmdb 0.9.26, py-lmdb 0.98) and
5-10 lua processes (with lightningmdb module which uses lmdb 0.9.22) which are
long-running serving queries from the database.
The database seems fine, not corrupted, and the python writes still working all
the time. But periodically (perhaps 10-20% of the time), in a way I am unable
to reliably reproduce, when the lua starts up every time a query is issued txn
dbi_open returns "MDB_BAD_TXN: Transaction must abort, has a child, or is
invalid". A direct restart of the processes does not fix this issue, however
stopping lua+python and then starting again after a 5-20s wait usually fixes
the issue. This has been reproduced over multiple servers but I'm at a loss as
to how to debug this any further?
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