[389-devel] Please review: [Bug 513019] nsslapd-lookthroughlimit is not respected when the filter test failed in search

[Noriko Hosoi]

https://bugzilla.redhat.com/show_bug.cgi?id=513019

           Summary: nsslapd-lookthroughlimit is not respected when the
                    filter test failed in search
           Product: 389
           Version: 1.2.0
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: medium
          Priority: low
         Component: Database - Indexes/Searches
        AssignedTo: nhosoi at redhat.com
        ReportedBy: nhosoi at redhat.com
         QAContact: ckannan at redhat.com
                CC: sramling at redhat.com
            Blocks: 434915
   Estimated Hours: 0.0
    Classification: Other
    Target Release: ---

Description of problem:

Bug report by Sankar Ramalingam:
Test Setup 1:
Simple paged with sorting with all default configuration values except
nsslapd-lookthroughlimit is set to 100
Added 400 users to the suffix.
Simple paged search request with normal user.

perl ./data/ldap_usr_search.pl -x -pg 90 "cn=test*" -S "cn" "dn"

Problem sorting, LDAP_ADMIN_LIMIT_EXCEEDED
next page size (90):

Result; This returns 90 entries and the ADMIN_LIMIT_EXCEEDED error.

perl ./data/ldap_usr_search.pl -x -pg 91 "cn=test*" -S "cn" "dn"
search failed: LDAP_ADMIN_LIMIT_EXCEEDED

Result: Search fails. Though the limit is set to 100, it fails for 91st entry.


[Proposed Fix]
Created an attachment (id=354532)
 --> (https://bugzilla.redhat.com/attachment.cgi?id=354532)
git patch file for ldbm_search.c

File: ldap/servers/slapd/back-ldbm/ldbm_search.c

Fix Description: When filter test is necessary against the search results 
and the test fails, lookthroughcount attached to the search result structure 
should have been decremented since the entry will not be sent to the client, 
but it was not.  This change fixes it.


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