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From 4df20255c1738526696ea72af6fc70e9c6aa6694 Mon Sep 17 00:00:00 2001
From: Alexander Bokovoy <abokovoy@redhat.com>
Date: Mon, 12 Jun 2017 11:05:06 +0300
Subject: [PATCH] trust-mod: allow modifying list of UPNs of a trusted forest

There are two ways for maintaining user principal names (UPNs) in Active
Directory:
 - associate UPN suffixes with the forest root and then allow for each
   user account to choose UPN suffix for logon
 - directly modify userPrincipalName attribute in LDAP

Both approaches lead to the same result: AD DC accepts user@UPN-Suffix
as a proper principal in AS-REQ and TGS-REQ.

The latter (directly modify userPrincipalName) case has a consequence
that this UPN suffix is not visible via netr_DsRGetForestTrustInformation
DCE RPC call. As result, FreeIPA KDC will not know that a particular UPN
suffix does belong to a trusted Active Directory forest. As result, SSSD
will not be able to authenticate and validate this user from a trusted
Active Directory forest.

This is especially true for one-word UPNs which otherwise wouldn't work
properly on Kerberos level for both FreeIPA and Active Directory.

Administrators are responsible for amending the list of UPNs associated
with the forest in this case. With this commit, an option is added to
'ipa trust-mod' that allows specifying arbitrary UPN suffixes to a
trusted forest root.

As with all '-mod' commands, the change replaces existing UPNs when
applied, so administrators are responsible to specify all of them:

  ipa trust-mod ad.test --upn-suffixes={existing.upn,another_upn,new}

Fixes: https://pagure.io/freeipa/issue/7015
Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>
---
 API.txt                    | 3 ++-
 VERSION.m4                 | 4 ++--
 ipaserver/plugins/trust.py | 3 ++-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/API.txt b/API.txt
index 6511ad8d1cb4dc9079628fc058312f31aaec624d..86229156adfba829a46b6a831ad6843cc1a17d6a 100644
--- a/API.txt
+++ b/API.txt
@@ -5769,11 +5769,12 @@ output: ListOfEntries('result')
 output: Output('summary', type=[<type 'unicode'>, <type 'NoneType'>])
 output: Output('truncated', type=[<type 'bool'>])
 command: trust_mod/1
-args: 1,9,3
+args: 1,10,3
 arg: Str('cn', cli_name='realm')
 option: Str('addattr*', cli_name='addattr')
 option: Flag('all', autofill=True, cli_name='all', default=False)
 option: Str('delattr*', cli_name='delattr')
+option: Str('ipantadditionalsuffixes*', autofill=False, cli_name='upn_suffixes')
 option: Str('ipantsidblacklistincoming*', autofill=False, cli_name='sid_blacklist_incoming')
 option: Str('ipantsidblacklistoutgoing*', autofill=False, cli_name='sid_blacklist_outgoing')
 option: Flag('raw', autofill=True, cli_name='raw', default=False)
diff --git a/VERSION.m4 b/VERSION.m4
index 8aa3ef03f352cd176579c5d5848ed9550f22105d..25aaa1dd0e3c2868e63300dec7fe9228f1ebcb43 100644
--- a/VERSION.m4
+++ b/VERSION.m4
@@ -73,8 +73,8 @@ define(IPA_DATA_VERSION, 20100614120000)
 #                                                      #
 ########################################################
 define(IPA_API_VERSION_MAJOR, 2)
-define(IPA_API_VERSION_MINOR, 227)
-# Last change: Add `pkinit-status` command
+define(IPA_API_VERSION_MINOR, 228)
+# Last change: Expose ipaNTAdditionalSuffixes in trust-mod
 
 
 ########################################################
diff --git a/ipaserver/plugins/trust.py b/ipaserver/plugins/trust.py
index 075b39dcc33a79f3e73e8e1e9e31ebbef17618fe..d0bbfbc47ca65c9c5229685fc9d202c293fe41cd 100644
--- a/ipaserver/plugins/trust.py
+++ b/ipaserver/plugins/trust.py
@@ -553,8 +553,9 @@ class trust(LDAPObject):
             flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'},
         ),
         Str('ipantadditionalsuffixes*',
+            cli_name='upn_suffixes',
             label=_('UPN suffixes'),
-            flags={'no_create', 'no_update', 'no_search'},
+            flags={'no_create', 'no_search'},
         ),
     )
 
-- 
2.9.4