ipa-kdb: add asserted identity SIDs
Depending on whether identity of a principal was asserted by the KDC or
by a service doing protocol transition (S4U2Self), AD DCs add a
special extra SID to a PAC record:
- S-1-18-1 is a SID for an Authentication Authority Asserted Identity
- S-1-18-2 is a SID for a Service Asserted Identity
This behavior is governed by [MS-SFU] 3.2.5.1.2 "KDC replies with Service
Ticket".
In order to add an asserted identity SID, we need to pass down the
client flags as set by the KDC and check for a protocol transition bit.
Fixes: https://pagure.io/freeipa/issue/8319
Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Isaac Boukris <iboukris@redhat.com>
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>