Hello,

I have a web application that doesn't work with openldap 2.4.21. The same application is working with an old openldap 2.3.30.

The problem I have is that for some reason this application performs a search with an undefined filter, the error I get in normal run is:

Dec 12 13:26:47 canis21 slapd[29241]: get_filter: unknown filter type=48

In the older slapd, log is:

Dec 12 03:59:14 canis5 slapd[16830]: conn=3220865 op=3 SRCH base="dc=unidades,dc=vistas,dc=um,dc=es" scope=1 deref=0 filter="(?=undefined)" Dec 12 03:59:14 canis5 slapd[16830]: conn=3220865 op=3 SEARCH RESULT tag=101 err=0 nentries=0 text=

If I run slapd in debug mode, I get:

ber_scanf fmt ({miiiib) ber: ber_dump: buf=0x7f23d5a0a9d0 ptr=0x7f23d5a0a9d3 end=0x7f23d5a0aa0d len=58 0000: 63 38 04 24 64 63 3d 75 6e 69 64 61 64 65 73 2c c8.$dc=unidades, 0010: 20 64 63 3d 76 69 73 74 61 73 2c 20 64 63 3d 75 dc=vistas, dc=u 0020: 6d 2c 20 64 63 3d 65 73 0a 01 01 0a 01 00 02 02 m, dc=es........ 0030: 00 96 02 01 00 01 01 00 30 00 ........0.

...

...

dnPrettyNormal: <dc=unidades, dc=vistas, dc=um, dc=es>

=> ldap_bv2dn(dc=unidades, dc=vistas, dc=um, dc=es,0) <= ldap_bv2dn(dc=unidades, dc=vistas, dc=um, dc=es)=0 => ldap_dn2bv(272) <= ldap_dn2bv(dc=unidades,dc=vistas,dc=um,dc=es)=0 => ldap_dn2bv(272) <= ldap_dn2bv(dc=unidades,dc=vistas,dc=um,dc=es)=0 <<< dnPrettyNormal: <dc=unidades,dc=vistas,dc=um,dc=es>, <dc=unidades,dc=vistas,dc=um,dc=es> SRCH "dc=unidades, dc=vistas, dc=um, dc=es" 1 0 150 0 0 begin get_filter ber_scanf fmt (x) ber: ber_dump: buf=0x7f23d5a0a9d0 ptr=0x7f23d5a0aa0b end=0x7f23d5a0aa0d len=2 0000: 30 00 0.

get_filter: unknown filter type=48 end get_filter 0 filter: (?=undefined) ber_scanf fmt ({M}}) ber: ber_dump: buf=0x7f23d5a0a9d0 ptr=0x7f23d5a0aa0d end=0x7f23d5a0aa0d len=0

send_ldap_disconnect 2:decoding attrs error send_ldap_response: msgid=0 tag=120 err=2 ber_flush2: 58 bytes to sd 15 0000: 30 38 02 01 00 78 33 0a 01 02 04 00 04 14 64 65 08...x3.......de 0010: 63 6f 64 69 6e 67 20 61 74 74 72 73 20 65 72 72 coding attrs err 0020: 6f 72 8a 16 31 2e 33 2e 36 2e 31 2e 34 2e 31 2e or..1.3.6.1.4.1. 0030: 31 34 36 36 2e 32 30 30 33 36 1466.20036

ldap_write: want=58, written=58 0000: 30 38 02 01 00 78 33 0a 01 02 04 00 04 14 64 65 08...x3.......de 0010: 63 6f 64 69 6e 67 20 61 74 74 72 73 20 65 72 72 coding attrs err 0020: 6f 72 8a 16 31 2e 33 2e 36 2e 31 2e 34 2e 31 2e or..1.3.6.1.4.1. 0030: 31 34 36 36 2e 32 30 30 33 36 1466.20036

conn=1000 op=3 DISCONNECT tag=120 err=2 text=decoding attrs error connection_closing: readying conn=1000 sd=15 for close

Any idea?