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[Bug 1015819] Re: sb_sasl_generic_pkt_length: received illegal packet length when using ldapsearch and sasl with ssl or tls

 

Yes I didn't mean the commit was wrong. The problem is MS-AD, but before the commit it was possible to do LDAP SASL bind over  an SSL/TLS connection to AD if you set min and max SSF below or equal to 128 (doesn't need to be zero).
So it would be nice to have some sort of AD compatibility mode. I think it would be okay for this mode to not follow the RFC as long as it is not the default operating mode and it is properly documented.

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https://bugs.launchpad.net/bugs/1015819

Title:
  sb_sasl_generic_pkt_length: received illegal packet length when using
  ldapsearch and sasl with ssl or tls

Status in cyrus-sasl2 package in Ubuntu:
  Confirmed

Bug description:
  [Status]

  This bug needs a developer to reproduce the problem and locate the
  root cause.

  [Workaround]

  Unknown.

  [Missing]

  Exact steps to reproduce.

  [Description]

  Not sure if this is a problem with openldap or cyrus-sasl2 at this
  point.

  Using sasl binding only works with ldapsearch when not using ssl or
  tls.  If either ssl or tls is used I see this ouput from -d 1 from
  ldapsearch:

  sb_sasl_generic_pkt_length: received illegal packet length of 813957120 bytes
  sasl_generic_read: want=16, got=16
    0000:  00 7e 02 01 00 78 84 00  00 00 5d 0a 01 02 04 00   .~...x....].....
  sb_sasl_cyrus_decode: failed to decode packet: generic failure
  sb_sasl_generic_read: failed to decode packet
  ldap_read: want=8 error=Input/output error

  # numResponses: 0
  ldap_result: Can't contact LDAP server (-1)
  tls_write: want=165 error=Connection reset by peer
  tls_write: want=165 error=Bad file descriptor

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