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Enterprise principals are currently most useful for the AD provider and
hence enabled here by default while for the other Kerberos based
authentication providers they are disabled by default.
If additional UPN suffixes are configured for the AD domain the user
principal stored in the AD LDAP server might not contain the real
Kerberos realm of the AD domain but one of the additional suffixes which
might be completely randomly chooses, e.g. are not related to any
existing DNS domain. This make it hard for a client to figure out the
right KDC to send requests to.
To get around this enterprise principals (see
http://tools.ietf.org/html/rfc6806 for details) were introduced.
Basically a default realm is added to the principal so that the Kerberos
client libraries at least know where to send the request to. It is not
in the responsibility of the KDC to either handle the request itself,
return a client referral if he thinks a different KDC can handle the
request or return and error. This feature is also use to allow
authentication in AD environments with cross forest trusts.
Fixes https://fedorahosted.org/sssd/ticket/1842
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krb5 1.11 adds support for a new method for responding to
structured data queries. This method, called the responder,
provides an alternative to the prompter interface.
This patch adds support for this method. It takes the password
and provides it via a responder instead of the prompter. In the
case of OTP authentication, it also disables the caching of
credentials (since the credentials are one-time only).
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krb5-1.10 used to include "struct krb5_trace_info", now krb5-1.11
includes a "krb5_trace_info" typedefed from "struct _krb5_trace_info".
Do the same in the SSSD to allow compiling with both 1.10 and 1.11.
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krb5_find_authdata() is only available in MIT Kerberos 1.10 or higher.
To allow sssd to be compiled on platform with lower version of MIT
Kerberos a replacement call is added. Please note that on those
platform the replacement call will only return an error. If the
krb5_find_authdata functionality is really needed on those platform it
must be implemented by a different patch.
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We can't support the DIR cache features in systems with kerberos
libraries older than 1.10. Make sure we don't build it on those
systems.
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https://fedorahosted.org/sssd/ticket/1325
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Also update BUILD.txt
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