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From 703ab8c4dfb7f8fd1540c3849ad469d39695a26f Mon Sep 17 00:00:00 2001
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From: Florence Blanc-Renaud <flo@redhat.com>
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Date: Jan 25 2023 16:57:02 +0000
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Subject: trust-add: handle missing msSFU30MaxGidNumber
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When ipa trust-add is executed with --range-type ad-trust-posix,
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the server tries to find the max uidnumber and max gidnumber
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from AD domain controller.
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The values are extracted from the entry
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CN=<domain>,CN=ypservers,CN=ypServ30,CN=RpcServices,CN=System,<AD suffix>
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in the msSFU30MaxUidNumber and msSFU30MaxGidNumber attributes.
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msSFU30MaxUidNumber is required but not msSFU30MaxGidNumber.
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In case msSFU30MaxGidNumber is missing, the code is currently assigning
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a "None" value and later on evaluates the max between this value and
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msSFU30MaxUidNumber. The max function cannot compare None and a list
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of string and triggers an exception.
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To avoid the exception, assign [b'0'] to max gid if msSFU30MaxGidNumber
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is missing. This way, the comparison succeeds and max returns the
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value from msSFU30MaxUidNumber.
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Fixes: https://pagure.io/freeipa/issue/9310
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Signed-off-by: Florence Blanc-Renaud <flo@redhat.com>
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Reviewed-By: Rob Crittenden <rcritten@redhat.com>
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---
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diff --git a/ipaserver/plugins/trust.py b/ipaserver/plugins/trust.py
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index c074f6d..79264b8 100644
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--- a/ipaserver/plugins/trust.py
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+++ b/ipaserver/plugins/trust.py
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@@ -379,7 +379,10 @@ def add_range(myapi, trustinstance, range_name, dom_sid, *keys, **options):
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range_type = u'ipa-ad-trust-posix'
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max_uid = info.get('msSFU30MaxUidNumber')
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- max_gid = info.get('msSFU30MaxGidNumber', None)
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+ # if max_gid is missing, assume 0 and the max will
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+ # be obtained from max_uid. We just checked that
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+ # msSFU30MaxUidNumber is defined
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+ max_gid = info.get('msSFU30MaxGidNumber', [b'0'])
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max_id = int(max(max_uid, max_gid)[0])
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base_id = int(info.get('msSFU30OrderNumber')[0])
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