Rewrite HBAC rule evaluator

Add helper function msgs2attrs_array

This function converts a list of ldb_messages into a list of
sysdb_attrs.

Conflicts:

	src/providers/ldap/ldap_common.c
	src/providers/ldap/ldap_common.h

Add HBAC evaluator and tests

Add helper functions for looking up HBAC rule components

Remove old HBAC implementation

Add new HBAC lookup and evaluation routines

Conflicts:

	Makefile.am

Add ipa_hbac_refresh option

This option describes the time between refreshes of the HBAC rules
on the IPA server.

Add ipa_hbac_treat_deny_as option

By default, we will treat the presence of any DENY rule as denying
all users. This option will allow the admin to explicitly ignore
DENY rules during a transitional period.

Treat NULL or empty rhost as unknown

Previously, we were assuming this meant it was coming from the
localhost, but this is not a safe assumption. We will now treat it
as unknown and it will fail to match any rule that requires a
specified srchost or group of srchosts.

libipa_hbac: Support case-insensitive comparisons with UTF8

UTF8 HBAC test

Fix memory leak in ipa_hbac_evaluate_rules

https://fedorahosted.org/sssd/ticket/933

Fix incorrect NULL check in ipa_hbac_common.c

https://fedorahosted.org/sssd/ticket/936

Require matched version and release for libipa_hbac

Add rule validator to libipa_hbac

https://fedorahosted.org/sssd/ticket/943

1 files changed, 42 insertions, 0 deletions

diff --git a/src/man/sssd-ipa.5.xml b/src/man/sssd-ipa.5.xml
index 4604c55e2..8d2ba6818 100644
--- a/src/man/sssd-ipa.5.xml
+++ b/src/man/sssd-ipa.5.xml
@@ -175,6 +175,48 @@
                         </para>
                     </listitem>
                 </varlistentry>
+                <varlistentry>
+                    <term>ipa_hbac_refresh (integer)</term>
+                    <listitem>
+                        <para>
+                            The amount of time between lookups of the HBAC
+                            rules against the IPA server. This will reduce the
+                            latency and load on the IPA server if there are
+                            many access-control requests made in a short
+                            period.
+                        </para>
+                        <para>
+                            Default: 5 (seconds)
+                        </para>
+                    </listitem>
+                </varlistentry>
+                <varlistentry>
+                    <term>ipa_hbac_treat_deny_as (string)</term>
+                    <listitem>
+                        <para>
+                            This option specifies how to treat the deprecated
+                            DENY-type HBAC rules. As of FreeIPA v2.1, DENY
+                            rules are no longer supported on the server. All
+                            users of FreeIPA will need to migrate their rules
+                            to use only the ALLOW rules. The client will
+                            support two modes of operation during this
+                            transition period:
+                        </para>
+                        <para>
+                            <emphasis>DENY_ALL</emphasis>: If any HBAC DENY
+                            rules are detected, all users will be denied
+                            access.
+                        </para>
+                        <para>
+                            <emphasis>IGNORE</emphasis>: SSSD will ignore any
+                            DENY rules. Be very careful with this option, as
+                            it may result in opening unintended access.
+                        </para>
+                        <para>
+                            Default: DENY_ALL
+                        </para>
+                    </listitem>
+                </varlistentry>
 
             </variablelist>
         </para>